archaic a legendary rock or mineral associated at times with both diamond and lodestones.
Derivative
adamancen.
adamancyn.
adamantlyadv.
Etymology
OE (as n.), from OFr. adamaunt-, via L. from Gk adamas, adamant-, ‘untameable, invincible’ (later used to denote the hardest metal or stone, hence diamond), from a- ‘not’ + daman ‘to tame’.
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