Tillamook is an extinctSalishan language, formerly spoken by the Tillamook people in northwestern Oregon, United States. The last fluent speaker was Minnie Scovell who died in 1972.[1] In an effort to prevent the language from being lost, a group of researchers from the University of Hawaii interviewed the few remaining Tillamook-speakers and created a 120-page dictionary.[3]
The so-called "rounded" consonants (traditionally marked with the diacritic ⟨ʷ⟩, but here indicated with ⟨ᵓ⟩), including rounded vowels and ⟨w⟩ (/ɰᵓ/), are not actually labialized. The acoustic effect of labialization is created entirely inside the mouth by cupping the tongue (sulcalization). Uvulars with this distinctive internal rounding have "a kind of ɔ timbre" while "rounded" front velars have ɯ coloring. These contrast and oppose otherwise very similar segments having ɛ or ɪ coloring—the "unrounded" consonants.
/w/ is also formed with this internal rounding instead of true labialization, making it akin to [ɰ]. So are vowel sounds formerly written as /o/ or /u/, which are best characterized as the diphthong /əɰ/ with increasing internal rounding.[4]
Edel, May M (1939). The Tillamook language. New York: J.J. Augustin. LCCN40001628. OCLC10272025.
"May M. Edel papers". Archives West. April 13, 2018 [2007]. Retrieved June 19, 2024.
Thompson, Lawrence C.; Thompson, M. Terry (1966). "A Fresh Look at Tillamook Phonology". International Journal of American Linguistics. 32 (4): 313–319. doi:10.1086/464920. JSTOR1264085. S2CID145658086.
