silicify

verb

Etymology: Etymology tree English silica Latin -i- Proto-Indo-European *dʰeh₁-der. Proto-Italic *-fakāō Latin -ficō Latin -ificāreder. Old French -ifierbor. Middle English -ifien English -ify English silicify From silica + -ify.

1. to impregnate something with silica.
2. to be impregnated with, or converted into silica.