ὀνῠχ-ῐνος · onych-inos — LSJ
made of onyx, IG 11(2).287 B 70 (Delos, iii B. C.), Posidon. 25 J., Plu. Ant. 58, etc.
like onyx, Plin. HN 15.55 ; esp. onyx-coloured, of garments, POxy. 114.6 (ii/iii A. D.), 1026.10 (v A. D.) ; πρόβατα PGen. 68.6 (iv A. D.).
ὀνύχινον (sc. ἔλαιον), made of ὄνυξ III.5, Dsc. 1.54.2.