ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do
μαπέειν: Ἐπικ. ἀπαρ. ἀόρ. β΄ τοῦ μάρπτω, ἱέμεναι μαπέειν Ἡσ. Ἀσπ. Ἡρ. 231.