On the etymology of the Japanese plural suffix and its possible connection to Korean

要旨

Abstract This paper presents an etymological analysis of the Japanese plural suffix tachi , Old Japanese tati . I propose that tati originates from a grammaticalization of an earlier Pre-Old Japanese phonological form *totwi, the non-bound reflex of which is the Old Japanese quasi-collective marker dwoti ‘fellow (person), everyone, together’. The reconstruction of a Pre-Old Japanese stem *totwi (Pre-Proto-Japanese /*tətəj/) with quasi-collective and plural function clarifies the possible connection of the Japanese plural suffix to the Korean plural suffix tul (Middle Korean tólh ), which Whitman ( 1985 , p. 217) proposed to be cognates but which has since been criticized on phonological and distributional grounds. I show that reconstructing the earliest form of the Japanese plural suffix as /*tətəj/ resolves each of the three phonological issues with the Japano-Koreanic comparison, creates a better morphosyntactic match between the two languages, and rules out a loanword relationship of the Japanese and Korean forms.

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