When the U. S. Constitution was signed it was ratified.
When all the delegates sign a constitution, this is an example of a situation where they ratify the constitution.
transitive verb-·fied·, -·fy·ing
Origin of ratifyMiddle English ratifien from Middle French ratifier from Medieval Latin ratificare from Classical Latin ratus (see rate) + facere, to make, do
transitive verbrat·i·fied, rat·i·fy·ing, rat·i·fies
Origin of ratifyMiddle English ratifien from Old French ratifier from Medieval Latin ratificāre Latin ratus fixed past participle of rērī to reckon, consider ; see rate 1. Latin -ficāre -fy
(third-person singular simple present ratifies, present participle ratifying, simple past and past participle ratified)
From Medieval Latin ratifico, from Latin ratus (“reckoned").
ratify - Legal Definition