出典:Wiktionary
出典:『Wiktionary』 (2025/12/04 00:22 UTC 版)
From 中期英語 lynspin, compound of lins (“axletree”) and pin, from 古期英語 lynis (“lynchpin”), from Proto-West Germanic *lunis, from Proto-Germanic *lunaz – compare German Lünse and Dutch luns – from Proto-Indo-European. Possible further cognates are Welsh olwyn (“wheel”), Old Armenian ողն (ołn, “back; spine, backbone”) and Sanskrit आणि (āṇí, “lynchpin”). Figurative use attested from the mid-20th century.
linchpin (third-person singular simple present linchpins, present participle linchpinning, simple past and past participle linchpinned)
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