lithify

[lith-uh-fahy]

verb (used with object), lith·i·fied, lith·i·fy·ing.

to change (sediment) to stone or rock.

verb (used without object), lith·i·fied, lith·i·fy·ing.

to become lithified.

Origin of lithify

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019