ληφθῆναι

From LSJ

ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do

Source

French (Bailly abrégé)

inf. ao. Pass. de λαμβάνω.

Russian (Dvoretsky)

ληφθῆναι: inf. aor. pass. к λαμβάνω.