出典:Wiktionary
From Middle English wharven (“to turn”), from 古期英語 hweorfan (“to turn”), from Proto-West Germanic *hwerban (“to turn”), from Proto-Germanic *hwerbaną (“to turn”). Cognate with Dutch werven (“to recruit”), Icelandic hverfa (“to turn”), Faroese hvørva (“to disappear”), German werben (“to recruit, advertise”).