the closest translation of this (lust) is "libog" if lust means excessive sexual appetite but for any other meaning of lust like -lust of power = hayok/kahayukan -lust for money = gahaman
You have a plethora of words in portuguese with the same meaning as lust, but in this case the literal translation would be Luxúria Here are some others: Desejo/desejar Cobiça/cobiçar...