köken: From Middle High German sê, from Old High German sē, sēo m (“sea”), from Proto-West Germanic *saiwi m (“sea”), from Proto-Germanic *saiwiz m (“sea”). Compare Low German See (“sea, lake”), Dutch zee f (“sea”), English sea, Danish sø c (“sea, lake”).
köken: Inherited from Middle French lac, from Old French lac, a replacement of earlier lai (“pit, trench, ditch, grave, mere, pond”) (see Old French lac). Generally inferred as a borrowing of Latin lacus (“lake”), from Proto-Indo-European *lókus (“lake, pool”).
aile: Grands Lacs, il n'y a pas le feu au lac, lac Léman, lac Poyang, lac salé
köken: From Proto-Turkic *kȫl (“lake”). Cognate with Old Turkic 𐰚𐰇𐰠 (köl, “lake”), Kyrgyz көл (köl), Uzbek koʻl, Southern Altai кӧл (köl), Shor кӧл, Khakas кӧл (köl), Turkish göl (“lake”), etc.
köken: From Proto-Turkic *kȫl (“lake”). Cognate with Old Turkic 𐰚𐰇𐰠 (köl, “lake”), Kazakh көл (köl), Kyrgyz көл (köl), Uzbek koʻl, Southern Altai кӧл (köl), Shor кӧл, Khakas кӧл (köl), Turkish göl (“lake”).
köken: From Old Galician-Portuguese lago, from Latin lacus (“lake”), from Proto-Indo-European *lókus (“lake, pool”). Compare Galician and Spanish lago.
köken: From Proto-Finnic *järvi (compare Estonian järv), from Proto-Finno-Permic *jäwrä (compare Northern Sami jávri, Erzya эрьке (eŕke)), probably borrowed either from Proto-Balto-Slavic *jaurā (compare Lithuanian jáura (“marshland, bog”)) or from earlier Proto-Indo-European *yewHr-.