Entry record from Mead (1998a): Proto-Bungku-Tolaki
Page number: 455
*nduu-nduu
• crashing; booming sound.
Note: MRN (S. Andersen 1994a:11): nduu-nduu ‘boom (like drum)’; KUL: nduu-nduu ‘bumping, thumping sound’; TOL: nduu-nduu ‘crash (e.g. falling rock)’. [Wolio nduu ‘report (of gun), crack, detonation; bang of a drum’ (Anceaux 1987:115)]