[on.yx] n [ME onix, fr. MF & L; MF, fr. L onych-, onyx, fr. Gk, lit., claw, nail--more at nail] (14c): a translucent chalcedony in parallel layers of different colors
ONYX
Meaning of ONYX in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012