exert (v.)

1660s, "thrust forth, push out," from Latin exertus/exsertus, past participle of exerere/exserere "thrust out, put forth," from ex "out, from within" (see ex-) + serere "attach, join; arrange, line up" (from PIE root *ser- (2) "to line up"). Meaning "put into use" is 1680s. Related: Exerted; exerting.

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