Fossilize

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Fossilize

(v. t.) To convert into a fossil; to petrify; as, to fossilize bones or wood.
(v. t.) To cause to become antiquated, rigid, or fixed, as by fossilization; to mummify; to deaden.
(v. i.) To become fossil.
(v. i.) To become antiquated, rigid, or fixed, beyond the influence of change or progress.