unwritten law

An accepted although informal rule of behavior, as in It's an unwritten law that you lock the gate when you leave the swimming pool. [Mid-1400s]

Name	Pronounced	Usage
Pasqualina	-	Italian
Elda	-	Italian
Nazli	-	Arabic
Ragnarr	-	Ancient Scandinavian
Erazem	-	Slovene
Franjo	FRAH-nyo	Croatian, Serbian