Definition of "wear down" []

• Used other than as an idiom: see wear,‎ down. (verb)
• To cause (someone) physical or mental fatigue. (verb)

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• "Recurrences are especially likely if you use topical hydrocortisone ointments, which eventually thin the skin and wear down its natural immunity."
• "“I am not going to wear down the pads of my feet so you can prove yourself to your females, Ranor,” Ruuqo said condescendingly."