■ adjective refusing to be persuaded or to change one's mind.
■ noun archaic a legendary rock or mineral associated at times with both diamond and lodestones.
Derivatives
adamance noun
adamancy noun
~ly adverb
Origin
OE (asnoun), from OFr. adamaunt- , via L. from Gk adamas , ~- , 'untameable, invincible' (later used to denote the hardest metal or stone, hence diamond), from a- 'not' + daman 'to tame'.