Etymology
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hibernate (v.)

"pass the winter in torpidity and seclusion," 1802, probably a back-formation from hibernation. Related: Hibernated; hibernating.

updated on July 08, 2015

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Definitions of hibernate from WordNet

hibernate (v.)
sleep during winter;
Bears must eat a lot of food before they hibernate in their caves
Synonyms: hole up
hibernate (v.)
be in an inactive or dormant state;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.