出典:Wiktionary
出典:『Wiktionary』 (2026/06/18 21:18 UTC 版)
From the oblique cases of 古期英語 feþer, from Proto-West Germanic *feþru, from Proto-Germanic *feþrō, from Proto-Indo-European *péth₂r̥ ~ pth₂én-. The form fyþer is probably influenced by 古期英語 fiþre (“wing”).