ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do
calcātūra: ae, f. calco,
I a treading: operarum, Vitr 10, 10, 1.
calcātūra, æ, f. (calco), action de fouler, de presser avec les pieds : Vitr. Arch. 10, 5, 1.