boniba

Bingham: Hiram Bingham, A Gilbertese-English Dictionary (1908, 1953). American Board of Commissioners for Foreign Missions.
Sabatier: Ernest Sabatier, M.S.C., Dictionnaire Gilbertin-Français (1954), translated by Sr. M. Oliva as Gilbertese-English Dictionary (1971). South Pacific Commission Publications Bureau.

Bingham

bóniba

vi. to engage in excavating a hole or small pit, for a tree or plant.

n. the work of excavating a hole for a tree or plant.

boniba

v. to make a hole, a notch, to mortise.

vt. boniba: to cut notch.