forgnawWiktionary 原文英美构词拆解forfor-前缀gnawgnaw词干for-Forth: prefixed to verbs to indicate a direction of 'away', 'off', 'forth'. · Exhausting: prefixed to verbs with the sense of wearing or exhausting oneself.词源链古英语Old English约 450–1150 年forgnagan‘to eat up’↓ 继承中古英语Middle English约 1150–1500 年forgnawen↓ 继承英语Englishforgnaw词源说明From Middle English forgnawen, forgnaȝen, from Old English forgnagan (“to eat up”), equivalent to for- + gnaw.释义动词verb1transitive, obsoleteTo gnaw in pieces; eat up.