出典:Wiktionary
From Middle English chare, variant (due to the verb form charen) of char, cher (“a turn”), from 古期英語 ċierr, ċerr (“a turn, change, time, occasion, affair, business”), from Proto-Germanic *karzijaną (“to turn, sweep”), from Proto-Indo-European *gers- (“to turn, bend”). More at char.
chare (複数形 chares)