Spanish oruga

← English arugula (mention)

← Proto-Indo-European *ǵʰer(s)-uk-eh₂ (inherited)

← Proto-Indo-European *ǵʰers- (derived)

← Latin ērūca (inherited)

← Old Spanish oruga (inherited)

→ Spanish oruguero (affix)

→ Galician eiruga (cognate)