ἀργαίνω
From LSJ
κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
English (LSJ)
A to be white, E.Fr.73, Philod.Scarph.126 (prob.), Opp.C. 3.299:—in Pass., Nonn.D.34.145 (s. v.l.).
Greek (Liddell-Scott)
ἀργαίνω: λευκαίνω, ποιῶ τι λευκόν, «ἀργαίνειν, τὸ λευκαίνειν παρ’ Εὐριπίδῃ ἐν Ἀλκμέωνι» Εὐστ. 1430, (Εὐρ. Ἀποσπ. 74), Ὀππ. Κυνηγ. 3. 299.
Spanish (DGE)
blanquear E.Fr.73, ἀργαίνοντ' ἐλέφαντι que resalta con la blancura del marfil Philod.Scarph.126, cf. Opp.C.3.299.