ˈ ̷ ̷ ̷ ̷ˌfī verb
( -ed/-ing/-es )
Etymology: lith- + -ify
transitive verb
: to change to stone : petrify
coal is carbonized and lithified vegetation — H.A.Meyerhoff
intransitive verb
: to become changed into stone
sands lithify into sandstones — C.M.Nevin