This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. To convert (wood or other organic matter) into a stony replica by petrifaction.

v. To cause to become stiff or stonelike; deaden.

v. To stun or paralyze with terror; daze.

verb-intransitive. To become stony, especially by petrifaction.

v. To harden organic matter by permeating with water and depositing dissolved minerals.

v. To produce rigidness akin to stone.

v. To immobilize with fright.

v. To become stone, or of a stony hardness, as organic matter by calcareous deposits.

v. To become stony, callous, or obdurate.

v. To convert, as any animal or vegetable matter, into stone or stony substance.

v. To make callous or obdurate; to stupefy; to paralyze; to transform; as by petrifaction. Young.

verb-intransitive. To become stone, or of a stony hardness, as organic matter by calcareous deposits.

verb-intransitive. Fig.: To become stony, callous, or obdurate.

To convert into stone or a stony substance; change into stone.

To make hard as stone; render hard or callous: as, to petrify the heart.

To paralyze or stupefy as with fear or amazement: as, to petrify one with astonishment.

To become stone or of a stony hardness, as organic matter by means of calcareous or other deposits in its cavities; hence, to change into lifeless hardness or rigidity.

v. cause to become stonelike or stiff or dazed and stunned

v. change into stone

v. make rigid and set into a conventional pattern

"The build-up of petrify occurs when petrify is churned in colder weather."

petrified    petrifies    petrifying   

deaden    blunt    fossilise    fossilize    stiffen   

petrifaction   

petrified   

stupefy    paralyze    transform    lapidify    lithify    fossilize    calcify    gorgonize    enmarble    immarble   

speechless    dumbfounded    aghast    daze    wide-eyed    unable    breathless    motionless    dumb    wither