出典:Wiktionary
出典:『Wiktionary』 (2026/09/01 23:59 UTC 版)
From 中期英語 spelunke, from Old French spelonque and/or Latin spelunca, from Ancient Greek σπῆλυγξ (spêlunx, “cave”), related to σπέος (spéos). Cognates include Middle Dutch spelunke, spelonke, German Spelunke.
U.S., 1940s. Back-formation from spelunker.
spelunk (third-person singular simple present spelunks, present participle spelunking, simple past and past participle spelunked)
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