manawanawa

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

mænawánawa

a. deeply miry.

manawanawa

a. empty space inside, hollow inside or under.

vc. ka-manawanawana: to make hollow inside, to give the sensation of an empty stomach.