ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone
(cf. σφοδρός): neut. adj. as adv., eagerly, impatiently. (Il.)
σφεδᾰνόν: adv. стремительно, сильно Hom.