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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.
a primitive root; to fell a tree; generally, to destroy anything: cut (asunder, in sunder, down, off), hew down.