eweka

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

ewéka

vt. leap upon, enter earnestly upon work, similar to the slang phrase "pitch in".

n. entering earnestly upon a job.

eweka

vt. eweweka: to jump on, to fall on, to attack, to fall upon, to fall to briskly, spiritedly.

from. ewe.