Inure vs. Enure: What's the Difference?

Inure and Enure Definitions
Inure
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).
Enure
Variant of inure.
Inure
(transitive) To cause someone to become accustomed to something that requires prolonged or repeated tolerance of one or more unpleasantries.
Enure
(transitive) To inure; to make accustomed or desensitized to something unpleasant due to constant exposure.
Inure
To take effect, to be operative.
Jim buys a beach house that includes the right to travel across the neighbor's property to get to the water. That right of way is said, cryptically, "to inure to the benefit of Jim".
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Enure
To take effect, to be operative; used with to.
Inure
To commit.
Enure
See Inure.
Inure
To apply in use; to train; to discipline; to use or accustom till use gives little or no pain or inconvenience; to harden; to habituate; to practice habitually.
He . . . did inure them to speak little.
Inured and exercised in learning.
The poor, inured to drudgery and distress.
"Here the fortune of the day turned, and all things became adverse to the Romans; the place deep with ooze, sinking under those who stood, slippery to such as advanced; their armor heavy, the waters deep; nor could they wield, in that uneasy situation, their weighty javelins. The barbarians on the contrary, were inured to encounter in the bogs, their persons tall, their spears long, such as could wound at a distance." In this morass the Roman army, after an ineffectual struggle, was irrecoverably lost; nor could the body of the emperor ever be found. Such was the fate of Decius, in the fiftieth year of his age; . . .
Inure
To pass into use; to take or have effect; to be applied; to serve to the use or benefit of; as, a gift of lands inures to the heirs.
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Inure
Cause to accept or become hardened to; habituate;
He was inured to the cold