[in and ure. Ure signifies use, practice, in old English.]

1. To habituate; to accustom; to apply or expose in use or practice till use gives little or no pain or inconvenience, or makes little impression. Thus a man inures his body to labor and toil, till he sustains that which would destroy a body unaccustomed to it. So we inure ourselves to cold or heat. Warriors are inured to blood, and seamen are inured to hardships and deprivations.