Etymology
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fossilize (v.)

1794 (transitive), from fossil + -ize. Intransitive use from 1828. Figurative use from 1856. Related: Fossilized; fossilizing.

updated on December 22, 2014

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Definitions of fossilize from WordNet

fossilize (v.)
convert to a fossil;
The little animals fossilized and are now embedded in the limestone
Synonyms: fossilise
fossilize (v.)
become mentally inflexible;
Synonyms: fossilise
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.