Upper Necaxa Totonac is a native American language of central Mexico spoken by 3,400 people^[3] in and around four villages— Chicontla, Patla, Cacahuatlán, and San Pedro Tlaloantongo —in the Necaxa River Valley in Northern Puebla State.^[4] Although speakers represent the majority of the adult population in Patla and Cacahuatlán, there are very few monolinguals and few if any children are currently learning the language as a mother tongue,^[5] and, as a consequence, the language must be considered severely endangered.

In some respects, Upper Necaxa has a fairly typical Totonacan consonantal inventory, lacking a voice/voiceless opposition in stops and having the three lateral phonemes /l/, /ɬ/, and /tɬ/, although the lateral affricate /tɬ/ has largely been replaced by the voiceless lateral fricative /ɬ/, persisting in word-final position in only a few lexical items.^[6]

The Upper Necaxan inventory is also notable in the family in that it lacks a uvular stop /q/ but contains a robust glottal stop phoneme, derived historically from *q.^[7] The loss of *q also resulted in the collapse of fricative + uvular sequences—*sq, *ʃq, and *ɬq—to ejective fricatives at the same point of articulation (i.e., s’, ʃ’, and ɬ’).

The vowel inventory is also somewhat different from most other members of the family, having full phonemic mid-vowels.

Although most examples of /e/ and /o/ are conditioned, at least diachronically, by adjacency to /ʔ/ (historically, *q) and, to a lesser extent, to /y/ and /x/, there are nevertheless enough instances of both without the conditioning environment that the vowels have to be considered phonemic.^[6]

Like other Totonacan languages, Upper Necaxa is a highly polysynthetic agglutinating language, making extensive use of both prefixes and suffixes for inflection, quasi-inflection, and derivation. The verb has nine relatively ordered prefixal “slots” and fourteen positions for suffixes. These positions are determined simply by the relative order in which co-occurring affixes can appear on the verb and do not correlate with semantically or functionally defined categories. Several affixes can appear in more than one position in the template, depending on various formal, semantic, and stylistic factors,^[8] and one position, suffix position 2, can accommodate more than one affix, the suffixes that can occupy this position being variably ordered with respect to one another.

Upper Necaxa dynamic verbs are inflected for three tenses (past, present, future), four aspects (imperfective, perfective, perfect, progressive), and four moods (indicative, optative, potential, irrealis). The tenses are marked exclusively by prefixes in the past and future and by a zero in the present, while three of the fours aspects (imperfective, perfective, and perfect) are marked by suffixes. The fourth aspect, the progressive, is realized through the use of inflectional compounds formed on the stative verb maːɬ ‘be lying’.^[9] The indicative mood is zero-marked while the optative and potential are marked by the prefixes ka- and tḭ-, respectively; the fourth mood, the irrealis, is marked by idiomatic combinations of morphemes borrowed from other parts of the TAM paradigms.^[10] Stative verbs are marked for tense and mood, but lack aspectual inflections.

Person-marking on the verb is complex, the verb agreeing in person and number with the subject and up to two objects. The table below shows the indicative perfective form of the transitive verb tṵks- ‘hit sth’:^[4]

	1sg.obj	2sg.obj	3sg.obj	1pl.obj	2pl.obj	3pl.obj
1sg.sub	—	ḭktṵksnḭ	ḭktṵkslḭ	—	ḭkaːtṵksnḭ	ḭkaːtṵkslḭ
2sg.sub	kintṵkstḭ	—	tṵkstḭ	kilaːtṵkswḭ	—	kaːtṵkstḭ
3sg.su	kintṵkslḭ	tṵksnḭ	tṵkslḭ	kinkaːtṵksnḭ	kaːtṵksnḭ	kaːtṵkslḭ
1plexc.sub	—	ḭkaːtṵksnḭ	ḭktṵkswḭ	—	ḭkaːtṵksnḭ	ḭkaːtṵkswḭ
1plincl.sub	—	—	tṵkswḭ	—	—	kaːtṵkswḭ
2pl.sub	kilaːtṵkswḭ	—	tṵkstit	kilaːtṵkswḭ	—	kaːtṵkstit
3pl.sub	kintatṵkslḭ	tatṵksnḭ	tatṵkslḭ	kinkaːtatṵksnḭ	kaːtatṵksnḭ	tatṵksnḭ/kaːtṵkslḭ

Like other members of the family, the Upper Necaxa verb paradigms show some irregularities in forms where first and second persons interact and one or both of these persons is plural, leading to a three-way ambiguity in such expressions:^[10]

ḭkaːtṵksnḭ ḭk- 1SG.SUB- kaː- PL.OBJ- tṵks hit -n -2OBJ -lḭ -PFV ḭk- kaː- tṵks -n -lḭ 1SG.SUB- PL.OBJ- hit -2OBJ -PFV ‘I hit you guys’ ‘we hit yousg ‘we hit you guys’

kilaːtṵkswḭ kin- 1OBJ- laː- RECP- tṵks hit -w -1PL.SUB -lḭ -PFV kin- laː- tṵks -w -lḭ 1OBJ- RECP- hit -1PL.SUB -PFV ‘yousg hit us’ ‘you guys hit me’ ‘you guys hit us’

A further wrinkle is that in clauses with third person plural subjects and third person plural objects, only one of these can be marked on the verb (see the bottom right cell in the paradigm given above).

Double object-marking is rare, and occurs only in clauses with both a singular first-person and a singular second person object:

Such a sentence where either the recipient or the theme (the bride in this case) were plural would have to be expressed by periphrastic means.

In addition to its rich verbal inflectional system, Upper Necaxa also a number of affixes that, like inflections, are close to 100% productive across the class of verbs, are semantically compositional, and do not form new lexemes with their bases, but which do not express obligatory categories. These fall under the heading of “quasi-inflection.”^[11] The quasi-inflectional morphemes include elements with modal meanings such as the desiderative suffix -kṵtun and the debiditive -ʔḛː, directionals such as kiː- ‘roundtrip’, teː- ‘in passing’, and -teːɬa ‘ambulative’, deictics (-či ‘proximal’ and -ča ‘distal’), -pala ‘repetitive’, and the totalitative -ʔo̰ː, which indicates either that an action has been carried through to completion or that the subject or objects have been completely affected.

Upper Necaxa has a wealth of valency-increasing morphemes, both causatives and applicatives, which can be combined more or less freely with verb roots and with each other to form multivalent verbs with up to five objects.^[12] There are two causatives, the less productive being ma̰ʔa- ‘stimulus’, which adds a non-agentive or inanimate causer of an involuntary change of state. The second, more productive, causative is the circumfix maː- -niː. This morpheme is a canonical causative that adds an agentive causer to an event and is compatible with almost any verb in the language. The suffixal portion of the circumfix is either -niː or takes the form of a long harmonic vowel agreeing in quality with the vowel of the preceding syllable. Only dynamic verbs require the suffix, stative verbs forming their causatives with maː- alone.

In addition to the causatives, there are four applicatives, each associated with a particular semantic role or roles. The most general of these is the benefactive -ni which adds semantic roles such as beneficiary, recipient, addressee, and affectee. The instrumental prefix liː- adds either an instrument or a motive to a clause, and is used to mark the subordination of a following finite clause in expressions of motive:

The third prefix, the comitative ta̰ː- adds a co-actor to the clause, while the fourth, la̰ʔ- 'allative', adds a goal, usually but not always human. The allative is found only with verbs of motion historically or synchronically derived from the verbs a̰n 'go' and min ‘come’.

A well-known characteristic of Totonacan languages in general is their prolific use of prefixal forms of bodyparts and other part-expressions to form verbs specifying a target or “active” zone for the action designated by the verb.^[13][14] The part prefixes can be combined either with a (free or bound) stative base, as in (1), or with an ordinary dynamic verb (2):

In neither case does the addition of the part prefix affect the valency of the verb, positively or negatively. Although there are a few individual lexical items where the addition of a part prefix can increase the valency (usually by adding an instrument), the only constructions where this is regularly the case are "wearing" verbs formed from the bound stative bases -nuː ‘in’ and -ʃtu ‘out’ such as makanuː ‘wear sth (clothing) on the hand (maka-)’/makaʃtu ‘remove sth (clothing) from the hand (maka-)’, a̰ʔnuː ‘wear sth (clothing) on the head (a̰ʔ-)’/a̰ʔʃtu ‘remove sth (clothing) from the head (a̰ʔ-)’, etc.

Unlike verbs, nouns in Upper Necaxa are uninflected.^[4] Although they have plural forms, these are rarely used and the language completely lacks case or any kind of noun class or gender. Possessive constructions are head-marked, the possessed nouns bearing a prefix showing the person of the possessor and a suffix indicating its number:

	singular	plural
1	kinčičḭ ‘my dog’	kinčičḭka̰n ‘our dog’
2	minčičḭ ‘your dog’	minčičḭka̰n ‘your dog’
3	ḭʃčičḭ' ‘his/her dog’	ḭʃčičḭka̰n ‘their dog’

Kinship terms and words referring to parts of wholes are inherently possessed and must always be inflected for person and number of their possessor, though they may be used generically with the prefix ʃa- ‘impersonal possessor’.

Upper Necaxa is a basically verb-initial, head-marking language with constituent order governed largely by information structure. Grammatical relations are marked exclusively by verbal agreement, the language lacking any case or prepositions,^[4] and verbs can have up to five objects. Unlike many languages where different object-relations are assigned by the government pattern of the verb and are assigned uniquely, in Upper Necaxa nominal arguments are largely undifferentiated and the choice of the controller of object-agreement morphology is governed by animacy and discourse-factors.^[15]

The “basic locative construction” (that is, the full answer to the question ‘where is X?’) in Upper Necaxa is unusually complex and contains elements expressing both the posture of the object whose location is being described (the Figure) and its intrinsic orientation with respect to another object that is used to locate it (the Ground):^[16]

The basic formula for these expressions is [Figure part.prefix+posture.verb Ground], where the posture verb describes the position (sitting, standing, lying, or up high) of the Figure and the part prefix specifies its intrinsic orientation with respect to the Ground. The order of lexical elements is flexible and the Figure may be omitted, and in some cases the Ground may be affixed with the locative clitic nak=. Preliminary data on acquisition indicate that children do not fully master this construction until they are 10 or 11 years of age.^[17]

Another interesting feature of these constructions is that, where such a reading is plausible, the mapping between Figure/Ground and grammatical relation is potentially reversible:

ḭkpḛʃtuwaká̰n ḭk- 1SG.SUB- pḛʃtu shoulder -waka̰ -be.high -n -2OBJ ḭk- pḛʃtu -waka̰ -n 1SG.SUB- shoulder -be.high -2OBJ ‘I (Figure) am on your (Ground) shoulders’ ‘you (Figure) are on my (Ground) shoulders’

kimpḛʔʃtuwáka̰ kin- 1OBJ- pḛʔʃtu- shoulder- wáka̰ be.high:2SG.SUB kin- pḛʔʃtu- wáka̰ 1OBJ- shoulder- be.high:2SG.SUB ‘you (Figure) are on my (Ground) shoulders’ ‘I (Figure) am on your (Ground) shoulders’

Although the two sentence above differ as to whether the first-person or subject-persons is subject or object (and vice versa) each has the same potential interpretations, the resolution of the ambiguity depending crucially on context.

Numerals below twenty are bound morphemes and must always be accompanied by a classificatory prefix indicating the type or measure of the noun being quantified. The use of a classificatory prefix, as opposed to a suffix, is typologically unusual.^[18] In all there are just over 30 classificatory prefixes,^[4] a few of which are illustrated below:

ča̰ːtin čḭʃkṵ ‘one man’		la̰ʔatin pa̰ʃnḭ ‘one pig’		ʔentin kḭwḭ ‘one stick’		paːtin ɬa̰mam ‘one pot’
ča̰ːtṵ čḭʃkṵ ‘two men’		tantṵ pa̰ʃnḭ ‘two pigs’		ʔentṵ kḭwḭ ‘two sticks’		paːtṵ ɬa̰mam ‘two pots’
ʔeɬatṵtun čḭʃkṵ ‘three men’		tantṵtun pa̰ʃnḭ ‘three pigs’		ʔentṵtun kḭwḭ ‘three sticks’		paːtutun ɬa̰mam ‘three pots’
ʔeɬata̰ːtḭ čḭʃkṵ ‘four men’		tanta̰ːtḭ pa̰ʃnḭ ‘four pigs’		ʔenta̰ːtḭ kḭwḭ ‘four sticks’		paːta̰ːtḭ ɬa̰mam ‘four pots’
ʔeɬakitsis čḭʃkṵ ‘five men’		tankitsis pa̰ʃnḭ ‘five pigs’		ʔenkitsis kḭwḭ ‘five sticks’		paːkitsis ɬa̰mam ‘five pots’
ʔeɬačaːʃan čḭʃkṵ ‘six men’		tančaːʃan pa̰ʃnḭ ‘six pigs’		ʔenčaːʃan kḭwḭ ‘six sticks’		paːčaːʃan ɬa̰mam ‘six pots’
ʔeɬatoxon čḭʃkṵ ‘seven men’		tantoxon pa̰ʃnḭ ‘seven pigs’		ʔentoxon kḭwḭ ‘seven sticks’		paːtoxon ɬa̰mam ‘seven pots’
ʔeɬatsayan čḭʃkṵ ‘eight men’		tantsayan pa̰ʃnḭ ‘eight pigs’		ʔentsayan kḭwḭ ‘eight sticks’		paːtsayan ɬa̰mam ‘eight pots’
ʔeɬanaxaːtsa čḭʃkṵ ‘nine men’		tanaxaːtsa pa̰ʃnḭ ‘nine pigs’		ʔenaxaːtsa kḭwḭ ‘nine sticks’		paːnaxaːtsa ɬa̰mam ‘nine pots’
ʔeɬakaʍ čḭʃkṵ ‘ten men’		tankaʍ pa̰ʃnḭ ‘ten pigs’		ʔenkaʍ kḭwḭ ‘ten sticks’		paːkaʍ ɬa̰mam ‘ten pots’

Note that the classifier for humans (first column) changes from ča̰ː- to ʔeɬa- after 3 (although ča̰ː- is occasionally used for 3 people); the classifier for one animal is la̰ʔa- and for more than one animal is tan (column 2). Numbers between 10 and 20 are formed by combining the numeral bases for 1–9 with the base for 10, -kaʍ: ʔeɬakaʍtin ‘11 (people)’, ʔeɬakaʍtṵ ‘eleven (people)’, etc.

Numbers higher than 20 are used without classificatory prefixes by many speakers. Like many Mesoamerican languages, Upper Necaxa uses a vigesimal numbering system based on multiples of pṵʃam ‘20’, the odd decades being formed by adding kaʍ ‘10’:

20 pṵʃam	30 pṵʃamakaʍ
40 tṵpṵʃam	50 tṵpṵʃamakaʍ
60 tṵtupṵʃam	70 tṵtupṵʃamakaʍ
80 ta̰ːtḭpṵʃam	90 ta̰ːtḭpṵʃamakaʍ

As the 11–19, numerals between decades are formed by simple compounding: pṵʃamatin ‘21’, pṵʃamakaʍtin ‘31’, etc. Numbers from 100 up are generally in Spanish.

• Aikhenvald, Alexandra Y. (2003). Classifiers: A typology of noun categorization devices. Oxford: Oxford University Press.
• Beck, David (2004). Upper Necaxa Totonac. Languages of the World/Materials 429. Munich: Lincom GmbH. ISBN 3-89586-821-3.
• Beck, David (2006). "The emergence of ejective fricatives in Upper Necaxa Totonac". University of Alberta Working Papers in Linguistics. 1.
• Beck, David. (2006). "Control of agreement in multi-object constructions in Upper Necaxa Totonac." In Atsushi Fujimori & Maria Amelia Reis Silva (eds.), Proceedings of the 11th Workshop on Structure and Constituency in the Languages of the Americas. Vancouver: UBC Working Papers in Linguistics.
• Beck, David (2008a). "Ideophones, adverbs, and predicate qualification in Upper Necaxa Totonac". International Journal of American Linguistics. 74 (1): 1–46. doi:10.1086/529462. S2CID 143943030.
• Beck, David. (2008b). "Variable ordering of affixes in Upper Necaxa Totonac." In Seok Koon Chin and Hude Fusheini (eds.), Proceedings of the 12th Workshop on Structure and Constituency in the Languages of the Americas, 29–38. Vancouver: UBC Working Papers in Linguistics.
• Beck, David (2011a). Upper Necaxa Totonac Dictionary. Berlin: Mouton de Gruyter.
• Beck, David. (2011b). "Lexical, quasi-inflectional, and inflectional compounding in Upper Necaxa Totonac." In Alexandra Aikhenvald & Pieter Muysken (eds.), Multi-verb Constructions: A view from the Americas, 63–106. Leiden: Brill.
• Beck, David; Melʹčuk, Igor A. (2011). "Morphological phrasemes and Totonacan verbal morphology". Linguistics. 49: 175–228. doi:10.1515/ling.2011.005. S2CID 29584619.
• Lam, Yvonne (2009). "The straw that broke the language's back: Language shift in the Upper Necaxa Valley of Mexico". International Journal of the Sociology of Language. 2009 (195): 219–233. doi:10.1515/ijsl.2009.012. S2CID 144076249.
• Langacker, R. W. (1987). Foundations of Cognitive Grammar, vol. II. Stanford: Stanford University Press.
• Levy, Paulette (1999). "From "part" to "shape": Incorporation in Totonac and the issue of classification by verbs". International Journal of American Linguistics. 65 (2): 127–175. doi:10.1086/466380. S2CID 144277772.
• Melʹčuk, Igor A. (2006). Aspects of the Theory of Morphology. Trends in Linguistics. Berlin: Mouton de Gruyter.
• Pederson, Eric; Danziger, Eve; Wilkins, David; Levinson, Stephen; Kita, Sotaro; Senft, Gunther (1998). "Semantic typology and spatial conceptualization". Language. 74 (3): 557–589. doi:10.1353/lan.1998.0074. hdl:11858/00-001M-0000-0013-2AB9-0. S2CID 210072843.
• Varela, Vianey, & Ryan Klint. (2006). "The ribbon sits on the candle’s shin: The acquisition of Basic Locative Constructions in Upper Necaxa Totonac. In Atsushi Fujimori & Maria Amelia Reis Silva (eds.), Proceedings of the 11th Workshop on Structure and Constituency in the Languages of the Americas. Vancouver: UBC Press.

• Upper Necaxa Totonac Project