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Λύπης ἰατρός ἐστιν ὁ χρηστὸς φίλος – A true friend is grief's physician.
tōphus: i, and its derivv., v. tofus.
tōphus, tōphīnus, tōphāceus, tōphīcius, tōphōsus, s. tofusetc.