κροκὺς
From LSJ
ἐὰν ἐκπέσῃ τὸ σιδήριον καὶ αὐτὸς πρόσωπον ἐτάραξεν καὶ δυνάμεις δυναμώσει καὶ περισσεία τοῦ ἀνδρείου σοφία (Ecclesiastes 10:10, LXX version) → If the iron axe fails, and the man has furrowed his brow, he will gather his strength, and the redoubling of his manly vigor will be the wise thing.
Greek (Liddell-Scott)
κροκὺς: ῠ, -ύδος, ἡ, (κρόκη Ι. 3), ὁ χνοῦς ἐριούχου ὑφάσματος, Ἡρόδ. 3. 8, Λουκ. Δραπετ. 28, κτλ.· τεμάχιον ἐρίου, κροκύδας ἀφαιρεῖν, χαρακτηριστικὸν τοῦ κόλακος, Ἀριστοφ. Ἀποσπ. 360, Θεοφρ. Χαρ. 2, κτλ. ― Ἐν Ἀντιγράφ. ἐνίοτε ἡμαρτημένως κροκίς, Ἱππ. Προγν. 38, Ἰακωψ. Ἀνθ. Π. σ. 596.