koromatua
1. (noun) thumb, big toe.
Ka hoki atu anō ki a Mahuika, ka kī atu, "Kua mate anō taku ahi." Ka homai anō e Mahuika ko tētehi o aua maikuku, nā, ka pērātia tonutia e Māui, pau noa tētehi o ngā ringaringa, ka tango ki tētehi o ngā ringaringa, ka tango ki ngā waewae, pau katoa ngā waewae. Kātahi i toe ko te koromatua, ka mōhio a Mahuika (TP 1/1913:6). / He returned again to Mahuika and said, "My fire went out again." Mahuika again gave him one of her fingernails. So Māui continued doing the same thing until all of one hand had been used up. She took more from the other hand and then the feet until all of the feet had been used. Then only the big toe was left and Mahuika realised.