σοὶ μὲν παιδιὰν τοῦτ' εἶναι, ἐμοὶ δὲ θάνατον → This is sport to you but death to me (Aristotle, Eudemian Ethics 1243a20)
P. and V. χρήσιμος, χρηστός, σύμφορος, πρόσφορος, ἐπιτήδειος, Ar. and P. ὠφέλιμος, προὔργου, Ar. and V. ὠφελήσιμος.
