inure
— Verb
– English
~ cause to accept or become hardened to; habituate; "He was inured to the cold"
inured
— Adjective
– English
~ made tough by habitual exposure; "hardened fishermen"; "a peasant, dark, lean-faced, wind-inured"- Robert Lynd; "our successors...may be graver, more inured and equable men"- V.S.Pritchett