man down , v :
(transitive, idiomatic) To lose courage or cause to lose courage. (transitive) To reduce in manpower. (transitive, chiefly falconry) To train (a raptor or other type of bird) to become accustomed to the presence of people; to man.
Source http://handbookblogger.blogspot.com/2017/08/man-down-word-of-day-for-august-21-2017.html
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