Meaning

noun a transparent piece of diamond that has been cut and polished and is valued as a precious gem

noun very hard native crystalline carbon valued as a gem

noun a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-)? Proto-Indo-European *demh₂-der. Ancient Greek δαμνάω (damnáō)? Ancient Greek ἀδάμας (adámas)der. Latin adamāsder. Late Latin diamās Old French diamantbor. Middle English dyamaunt English diamond From Middle English dyamaunt, from Old French diamant, from Late Latin diamās, from Latin adamās,…

Etymology from Wiktionary, CC BY-SA 3.0