すぬい【酢海苔・州海苔】 : sunui | define meaning

Cognate with Setouchi (Amami) そのﾙ sonor; Okinoerabu and Yoron しぬい shinui; Okinawan すぬい sunui; Miyako [sɿnuɿ] and [sɿnuɭ]; Ishigaki (Yaeyama) すのーる sunooru; and Taketomi (Yaeyama) すぬる sunuru "Mozuku (edible seaweed)". Also cognate with the historical Japanese term すのり【州海苔】 sunori, which referred to either fresh-water algae (Prasiola japonica sp.) or to various species of brown algae (Chordariaceae sp.) that are thicker than Mozuku. The term may go back to a compound of す【酢】 su "vinegar" and のり【海苔】 nori "seaweed" owing to the fact that it is commonly cooked in vinegar.