wirikiriki

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

wiríkiriki

vi. to eat with very small mouthfuls, to speak softly.

n. a low utterance.

wirikiriki

n. (1) whispering, a whisper.

v. to speak softly,... in low voice.(2) to eat, hardly moving jaws.