petrify

verb

pet·​ri·​fy ˈpe-trə-ˌfī 

petrified; petrifying

transitive verb

1

: to convert (organic matter) into stone or a substance of stony hardness by the infiltration of water and the deposition of dissolved mineral matter

2

: to make rigid or inert like stone:

a

: to make lifeless or inactive : deaden

slogans are apt to petrify a man's thinking

—Saturday Rev.

b

: to confound with fear, amazement, or awe

a novel about an airline pilot that will petrify you

—Martin Levin

intransitive verb

: to become stone or of stony hardness or rigidity

Synonyms

• undermine
• weaken
• drain
• desiccate
• exhaust
• dehydrate
• enervate
• castrate

Examples of petrify in a Sentence

the processes that petrify wood

The dead tree petrified into stone.

Recent Examples on the Web

You'll be petrified by the violence inflicted upon boys who only wanted a chance to pull their families out of financial duress and have an opportunity at a comfortable life afforded to most of us sitting in our seats. —Haadiza Ogwude, The Enquirer, 13 Sep. 2025

The only issue is his mother Laura (Wright), a woman who has lost a child once before and is petrified of a repeat. —Lily Ford, HollywoodReporter, 5 Sep. 2025

So don’t go around being petrified of having your esophagus rupture someday. —Bruce Y. Lee, Forbes.com, 28 June 2025

Nearly every day brings a fresh breach of what were once thought to be the rules, moves that have thrilled his insurgent supporters and petrified his nervous opponents. —Peter Baker, New York Times, 30 Apr. 2025

Word History

Etymology

Middle English petrifien (as past participle petrified), borrowed from Medieval Latin petrificāre, from Latin petra "rock, boulder, crag" (borrowed from Greek pétra) + -ificāre -ify — more at petro-

First Known Use

15th century, in the meaning defined at transitive sense 1

Rhymes for petrify

• abscissae
• alibi
• alkali
• alumni
• amoebae
• amplify
• annuli
• beautify
• brachii
• butterfly
• calculi
• certify

Kids Definition

petrify

verb

pet·​ri·​fy ˈpe-trə-ˌfī 

petrified; petrifying

1

: to convert into stone or a stony substance by the penetration of water and the depositing of minerals which were dissolved in the water

petrified wood

2

: to make lifeless or inactive : deaden

3

: to paralyze with fear, amazement, or awe : stun

Medical Definition

petrify

verb

pet·​ri·​fy ˈpe-trə-ˌfī 

petrified; petrifying

transitive verb

: to convert (organic matter) into stone or a stony substance

intransitive verb

: to become stone or like stone