Latin rēgulō

→ Asturian regular (mention)

→ Catalan regular (mention)

→ Lower Sorbian regulowaś (derived)

→ Lower Sorbian regulěrowaś (derived)

→ Spanish regular (mention)

→ Spanish reglar (derived)

→ French régler (mention)

→ French réguler (mention)

→ Italian regolare (mention)

→ Latin regulans (mention)

→ Latin regulaturus (mention)

→ Latin regulatus (mention)

→ Latin regulandus (mention)

→ Polish regulator (derived)

→ Polish regulacja (derived)

→ Polish regulować (borrowed)

→ Portuguese regular (borrowed)

→ Portuguese regrar (mention)