obukoowu.

o- (bu/-) weakness; tiredness, exhaustion; looseness; softness; viscosity. cf. -lebevu, lebera.

a- no plur. (ka/bu) spasm; exhaustion. Olunaku olwo lwatandika n'akasana akayinza n'okusuula omuntu kawansazi. That day started off with sunshine which was capable of throwing a person into a state of exhaustion.