atumatoa

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

átumátoa

n. wide, strong pan leaf.

a. wide and strong as a certain pan leaf.

atumatoa

n. dancer with a stiff neck (ruoia).

atumatoa¹

n. 1. a certain kind of large pandanus leaf.
2. palm leaf hard to detach.