[lith.i.fy] vb -fied ; -fy.ing vt (1877): to change to stone: petrify; esp: to convert (unconsolidated sediment) into solid rock ~ vi: to become changed into stone -- lith.i.fi.ca.tion n
LITHIFY
Meaning of LITHIFY in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012