Liddell–Scott–Jones: μῶνυξ

μῶνυξ,ῠχος,ὁ,ἡ,τό,

A. with a single, i.e.uncloven, hoof, epith. of the horse, freq. in Il.,5.236 , al.; once in Od.,15.46 , cf. Sol. 23 , E. Ph. 793 (lyr., dub.l.), Stud.Pont. 3.16

(ii/i B.C.); also μ. ὕες

Arist. HA 499b13

;τὰ μ. [τῶν ζῴων] Hp. Art. 8 ; τετραπόδων ὅσα μ.

Porph. Abst. 4.7

; [ γένει] τῷ καλουμένῳ μώνυχι

Pl. Plt. 265d

. (Fromsm- (weak form ofsem-, cf.εἷς) andὄνυξ(ὄ- lengthd. in composition).)