Inurement

in·ure also en·ure  (n-yr)

tr.v. in·ured also en·ured, in·ur·ing also en·ur·ing, in·ures also en·ures

To habituate to something undesirable, especially by prolonged subjection; accustom: "Though the food became no more palatable, he soon became sufficiently inured to it" (John Barth).

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[Middle English, back-formation from enured, customary, from in ure : in, in; see in¹ + ure, use (from Old French euvre, uevre, work, from Latin opera, activity associated with work; see op- in Indo-European roots).]

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in·urement n.