salsa rolla (Catalan) comes from Portuguese rolha, from Latin rotula, from Arabic رَطْل, from Classical Syriac ܪܝܛܠܐ, from Classical Syriac ܠܝܛܪܐ, from French litre, from Medieval Latin litra, from Ancient Greek λίτρα — ingot.
salsa rolla (Catalan): rouille