sinn er siður í landi hverju

Icelandic

Etymology

From sinn (“its”) + er (“is”) the third person singular of vera (“to be”) + siður (“custom”) + í (“in”) + landi the dative of land (“land”) + hverju the neuter dative form of hver (“each”). Literally meaning "it is the custom in each land", "customs are unique for every country" or "each country has its own customs".

Confer the Faroese phrase sær er siður á landi.

Phrase

sinn er siður í landi hverju

1. when in Rome, do as the Romans do