ὀνυχίτης
From LSJ
οὗτος μὲν ὁ πιθανώτερος τῶν λόγων εἴρηται, δεῖ δὲ καὶ τὸν ἧσσον πιθανόν, ἐπεί γε δὴ λέγεται, ῥηθῆναι → this is the most credible of the stories told; but I must relate the less credible tale also, since they tell it
English (LSJ)
[ῑ], ου, ὁ, (
A ὄνυξ 111.4) of the onyx kind, ὀ. λίθος Dsc.5.74 :—also fem. ὀνῠχ-ῖτις λίθος, App.Mith. 115, cf. Plin. HN34.103.