Etymology
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vivify (v.)
late 14c., from Old French vivifier "come alive; give life to" (12c.), from Late Latin vivificare "make alive, restore to life," from vivificus "enlivening," from Latin vivus "alive" (from PIE root *gwei- "to live") + combining form of facere "to make" (from PIE root *dhe- "to set, put"). Vivificate in same sense is recorded from early 15c.
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revivify (v.)

"restore to animation or activity" after actual or apparent death, 1670s, from French revivifier (16c.) and directly from Late Latin revivificare, from re- "back, again" (see re-) + Latin vivificare "make alive, restore to life" (see vivify).  Related: Revivified; revivifying; revivification.

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