köken: From Middle High German diep, Old High German diob, from Proto-West Germanic *þeub, from Proto-Germanic *þeubaz. Cognate with Old Norse þýfð, Old English þēof, Dutch dief, English thief, Gothic 𐌸𐌹𐌿𐍆𐍃 (þiufs).
köken: From Proto-Turkic *ogrï (“thief”). Cognate with Old Turkic 𐰆𐰍𐰺𐰃 (oγrï /uǧr¹i/, “thief”), Karakhanid اُغْریٖ (oγrï), Turkish uğru, Uyghur ئوغرى (oghri), Uzbek oʻgʻri, Kazakh ұры (ūry), Kyrgyz ууру (uuru), Bashkir уғры (uğrı), Yakut уор (uor), Chuvash вӑрӑ (vără). The sense career criminal is likely a 20th century semantic loan from Russian вор в законе (vor v zakone).
köken: From Old Galician-Portuguese cunna, cuna, from Vulgar Latin *cunea, from Latin cuneus, from Proto-Indo-European *h₂ḱū (“sting”). Compare Spanish cuña.
köken: Often considered a nativisation of the Sino-Korean term 도적 (盜賊, dojeok, “thief, robber”), attested widely in Middle Korean as 도ᄌᆞᆨ (Yale: twòcòk), but this would entail the highly irregular shift /t͡s/ > /t/ in all varieties of Korean. Some kind of Sinitic source seems evident, however.
wedge (simple machine) · wedge (five-sided polyhedron) · wedge (something that creates a division)
çekim: çoğul kiilat · tamlayan kiilan
köken: Borrowed from Middle Low German kīl (“wedge”), possibly but not necessarily through Swedish kil (“wedge”). Even an older Proto-Germanic borrowing has been suggested, but this runs into phonetic difficulties (the Low German word derives from earlier *kīþla-).