Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
multātīcĭus (mulct-), or -tĭus, a, um, adj. [1. multa], of or belonging to fines, fine-: pecunia, fine-money, Liv. 10, 23, 13: argentum, id. 30, 39, 8; 27, 6, 19.