Main entry: petrify
Definition: cause to become stonelike or stiff or dazed and stunned
Usage: The horror petrified his feelings; Fear petrified her thinking
Main entry: ossify, petrify, rigidify
Definition: make rigid and set into a conventional pattern
Usage: rigidify the training schedule; ossified teaching methods; slogans petrify our thinking
Definition: change into stone
Usage: the wood petrified with time