ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone
Ar. and P. λέμμα, τό (Plato, Timaeus 76A).
a coating of ice had formed not strong enough to give a foothold: P. κρύσταλλος ἐπεπήγει οὐ βέβαιος ὥστε ἐπελθεῖν (Thuc. 3, 23).
