RIGIDIFY

rigidify, ossify, petrify

(verb) make rigid and set into a conventional pattern; “rigidify the training schedule”; “ossified teaching methods”; “slogans petrify our thinking”

rigidify

(verb) become rigid; “The body rigidified”

Source: WordNet® 3.1

Etymology

Verb

rigidify (third-person singular simple present rigidifies, present participle rigidifying, simple past and past participle rigidified)

To make rigid, to cause to be or become rigid.

Source: Wiktionary