ra'u

to take something without the owner's permission; to seize something forcibly.

ra'u maahu, ancient expression, literally: to appropriate the steam (maahu) of the food just taken out of an earth oven. It refers to intruders coming to help themselves uninvited. Warriors off to a battle used to be told: E ra'u maahu no koe, o pagaha'a! meaning: "Eat little, lest you be heavy (and lose your agility)."