verb
inure
in-YOOR/ˌɪnjˈʊr/
To make someone accustomed to something difficult or unpleasant.
Repeated tasting inures the woman to the coffee's bitterness.

Etymology
“In ure” meant “in practice,” and putting something into practice meant establishing it by use. Becoming accustomed through use developed into being toughened or hardened by experience, especially something unpleasant.
More examples
- Repeated rejection can inure writers to harsh criticism.
- He is inured to the noise of passing trains.
- The training inures recruits to long days with little sleep.
Forms
inure · inures · inured · inuring