ingu

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

íngu

vi. roar as distant thunder or cannon firing.

ingu

n. inguingu, ingu nako,.

from. ingu and u: movement with muffled sound.

v. to move or fall with muffled sound, to make a muffled sound.

vc. ka-ingua: to make fall..., move with this sound.

idiom. ka-ingua marakim: calm yourself (to person in pain).