Ngoi (i), n. 1. Strength, energy. Hore he ngoi, hore he aha (T. 15). Ngoi-kore, weak, listless. Kua ngoi-kore te tupapaku, heoti ano ka mau (T. 119).
2. A method of dressing the hair, topknot. Ka ngoia te mahunga.
Williams Dictionary
Ngoi (ii), ngoingoi, v.i. Creep, crawl. Katahi te tangata ra ka ngoi atu, ka tata ki te taha o te wahine ra.—Ko te mea ngoingoi whenua, he waewae ona i haere ai.
ngoingoi, n. Old woman. E ngoi, a form of address to an old woman.
‖ ngoki.
Williams Dictionary