זָכָה
From LSJ
Δὶς ἐξαμαρτεῖν ταὐτὸν οὐκ ἀνδρὸς σοφοῦ → Qui sapit, eundem non bis errabit modum → Den selben Fehler zwei Mal macht kein kluger Mann
English (Strong)
a primitive root (compare זָכַך); to be translucent; figuratively, to be innocent: be (make) clean, cleanse, be clear, count pure.