ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone
P. and V. μέγας, μέγιστος, ὑπερφυής (Aesch., Fragment). P. ὑπερμεγεθής, Ar. ὑπέρμεγας.
ironically: Ar. πελώριος; see vast.