noun
deprivation
dep-rih-VAY-shun/ˌdeprɪˈveɪʃn/
Harmful lack or denial of something needed or normally available.
The dry tap and nearly empty container leave the family facing water deprivation.

Etymology
The pieces express an act of stripping something away completely. First used for removal from church office or rank, deprivation broadened to taking something away and then to the resulting state of lacking it.
In context
Acute sleep deprivation happens when you get less than 6 hours of sleep in a 24-hour period. Its effects starts to show within hours.
More examples
- Many children in the region grow up facing severe deprivation.
- Prolonged sensory deprivation can cause anxiety and confusion.
- She writes about the deprivations her family endured during the war.