ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)
ἀλλοδαπός, ἄγλωσσος, ἄγλωττος, ἔπηλυς, ἐπηλύτης, ἐπήλυτος, ξεῖνος, ξένος, ὀθνεῖος