ădămas — Lewis & Short
ădămas, antis, m. (a)da/mas (invincible),
acc. Gr. adamanta, adamantas), =I adamant, the hard est iron or steel; hence poet., for any thing inflexible, firm, lasting, etc. (first used by Verg.):
porta adversa ingens solidoque adamante columnae,Verg. A. 6, 552; cf. Mart. 5, 11;
adamante texto vincire,with adamantine chains, Sen. Herc. F. 807.—Trop. of character, hard, unyielding, inexorable:
nec rigidos silices solidumve in pectore ferrum aut adamanta gerit,a heart of stone, Ov. M. 9, 615:
lacrimis adamanta movebis,will move a heart of stone, id. A. A. 1, 659; so id. Tr. 4, 8, 45:
voce tua posses adamanta movere,Mart. 7, 99:
duro nec enim ex adamante creati, Sed tua turba sumus,Stat. S. 1, 2, 69. —
II The diamond:
adamanta infragilem omni cetera vi sanguine hireino rumpente,Plin. 20, prooem. 1. 37, 4, 15, § 55 sq.