ὁπόσον τῷ ποδὶ περρέχει τᾶς γᾶς, τοῦτο χάρις → every inch of his stature is grace, from top to toe he's a complete charmer
P. and V. ἄπιστος, σφαλερός.
fickle: Ar. and V. ἀστάθμητος.