"Lithify" Natural Recordings by Native Speakers
The word "lithify" is a verb that means to convert or change something into stone, especially through geological processes such as sedimentation, cementation, or metamorphism. It can also refer to the process of converting a substance into a hard, stony material, often through the action of heat or pressure.
I apologize, but I couldn't find any evidence of the word "litherly" in English language dictionaries. It's possible that it's a misspelling or a made-up word. If you meant "literally" or another word, please let me know and I'll be happy to help.