ほじょかつよう 補助活用 LinksSentence search for 補助活用Sentence search for ほじょかつようKanji details for 補, 助, 活 and 用Edit in JMdict Noun1. classical form of i-adjective inflection formed by contraction of the "ku" adverbial form with the classical verb "ari" ("aru")See also カリ活用 Discussions Log in to talk about this word.