Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
lūdĭfĭcātĭo, ōnis, f. [ludifico], a making game, a rallying, jeering, derision, mocking: cum omni morā, ludificatione, calumniā senatūs auctoritas impediretur, * Cic. Sest. 35, 75: exactā prope aestate per ludificationem hostis, Liv. 22, 18: ludificatio veri, id. 26, 6.