a. rare. [f. L. vērificāt-, ppl. stem of vērificāre: see VERIFY v. and -ATIVE. Cf. OF. verificatif, obs. F. vérificatif, Sp., Pg., It. verificativo.] Verificatory.
1854. E. Strachey, Miracles & Science, 17. A very clear example of the deductive and verificative branches of our method.
1860. in Worcester (citing N. Amer. Rev.). Hence in recent Dicts.