rat·i·fy [ ráttə f ](past and past participlerat·i·fied, present participlerat·i·fy·ing, 3rd person present singularrat·i·fies)
transitive verb
Definition:
formally approve something: to give formal approval to something, usually an agreement negotiated by somebody else, in order that it can become valid or operative
[14th century. Via French ratifier< medieval Latin ratificare "make fixed" < Latin ratus (see rate)]