Latin ruga

← Proto-Indo-European *h₁roug-h₂- (derived)

← Proto-Indo-European *h₁rewg- (mention)

← Proto-Italic *roug-ā- (inherited)

← Latin ructo (mention)

→ English rugate (mention)

→ English corrugant (mention)

→ Greek ρούγα (derived)

→ Indonesian rua (derived)

→ Italian ruga (inherited)

→ Norman rue (inherited)

→ Occitan rua (inherited)

→ Portuguese rua (derived)

→ Portuguese ruga (derived)

→ Old Portuguese rua (derived)