λευκόω
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
A whiten over, [πυξίον] Aen.Tact.31.14; βωμόν IG22.1672.140:—Med., λευκοῦσθαι τὰ ὅπλα whiten their shields, X.HG2.4.25, cf. 7.5.20; λ. πόδα bare the foot, AP9.403 (Maec.). II mostly in Pass., to be made or become white, λευκωθεὶς κάρα μύρτοις Pi.I.4(3).69; τοῖχος λελευκωμένος whitened or plastered, Pl.Lg.785a; γραμματεῖον λελευκωμένον, = λεύκωμα 1, D.46.11; ὁ ἄνθρωπος οὐ λευκός ἐστιν ἀλλὰ λελεύκωται Arist.Ph.185b29; of a leper, Ph.1.346; λελευκωμένος πίναξ, of the list of proscribed, D.C.Fr.109.12.