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Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
Σαρδώ, -οῦς, ἡ.
Sardinian, adj.: Σαρδόνιος, Σαρδονικός.