piedra preciosa
From LSJ
ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
Spanish > Greek
γωνιαῖος, ἀστριότης, Βαβυλώνιος, γαβίς, διφυής, ἀμφίκομος, ἀτιζώη, δάφνιον, ἄστριος, ἀερίτης, ἀστερίτης, γασυνδάνη, γερανῖτις, δροσόλιθος, γλωσσοπέτρα, ἐλαφοκερατίτης, ἔνυγρος, ἀστραπαῖος, ἄστολος, ἔνυδρος