For someone (actor -um- & patient) to become disappointed because an expectation is not realized.
ngumhop
Nen un ngungumhop hi Butāle ti inamin di lāman di ūmana.
You see Butāle has become very disappointed because the wild pigs have completely destroyed his upland field.
Nginumhop hi Bumallātung hidin tinamūana ti do'ol ya un ītang di indatdah bino'lāna.
Bumallātung became disappointed when he worked because it was much and they only gave him a little for what he earned.
-um-: ngumhop