Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
vātĭcĭnātĭo, ōnis, f. [vaticinor], a foretelling, soothsaying, prophesying; a prediction, vaticination, Cic. N. D. 2, 3, 10; id. Att. 8, 12, 1; Caes. B. G. 1, 50; Val. Max. 1, 8, 10; Suet. Caes. 59; Plin. Ep. 6, 20, 19.