Definitions
1.verbTo make into a fossil
2.verbTo become a fossil
3.verb(by extension) to become inflexible or outmoded
4.verb(by extension) To make antiquated, rigid, or fixed; to deaden.
5.adjectiveIn a state of fossilization; preserved in rock
6.adjectiveOutmoded
7.adjectiveHaving become a fossil: no longer productive