batunga

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

bætunga

vt. to begin a mat.

batunga

n. batunga ni bai: things in a heap, in packets, a parcel of... to put in a corner (as a mat in course of weaving).

vt. batunga: to begin weaving a mat.