triophthalmus
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
trĭophthalmus (-ŏs), ī, m. (τριόφθαλμος), sorte de pierre précieuse : Plin. 37, 186.
triophthalmus, i. m. :: 寶石名