English: (noun) tiredness, fatigue
Bahasa Malaysia: keletihan
Source: Peter Martin's Kelabit Dictionary
derur: bamboo gadget used for frightening birds away in padi fields. It consists of bamboo poles strung in such a way as to produce a large clatter when the strings are pulled.
merur: tired (as after a lot of exercise, a long walk, etc)
ngerur (ng-erur): to tire sby
ngerurong: shake, as a kettle, etc to stir up dregs
ngerurug (ng-rurug): pour out something (as fruit from a basket); leaves and fruit which have already fallen ?
ngerurung: rinse, wash out the mouth or other object that is not scrubbed out with the hand, but rather rinsed out with water
terur: 1) egg; 2) testical