撥はつ音おん便びん

noun

nasal sound change; hatsuonbin

Linguistics term for the historical sound change where a verb stem ending in 'i' or 'u' generates the moraic nasal 'n' (ん), as in 読みて → 読んで. Often contrasted with 促音便 (geminate sound change).

See also: 促音便

• 「読よんで」の「ん