taumatoa

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

taumæ/toa

va. neglecting to return a borrowed article, negligent.

n. negligence in returning a borrowed article.

taumatoa

nv. holding firm, obstinacy.

v. to hold on to things borrowed.