Carl Johan Sverdrup Marstrander (26 November 1883 – 23 December 1965) was a Norwegian linguist, known for his work on the Irish language.[1] His works, largely written in Norwegian, on the Celtic and Norse components in Norwegian culture, are considered important for modern Norway.[2]
His Bidrag til det Norske Sprogs historie i Irland (1915) and Les présents indo-européens à nasale infixée en celtique (1924), are two of his larger works.[3]
He is also known for his writings on the history of the Isle of Man,[7] and for securing support and recognition for the Manx historian John Kneen.[8] He made pioneering sound recordings of the Manx language, at a time when few fluent native speakers survived.[9][10]
He theorised a North Italian or Etruscan origin for the runes. This was, however, partly based on an artefact known now to have been faked.[11][12]