σφεδανόν

From LSJ

ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone

Source

English (Autenrieth)

(cf. σφοδρός): neut. adj. as adv., eagerly, impatiently. (Il.)

Russian (Dvoretsky)

σφεδᾰνόν: adv. стремительно, сильно Hom.