Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
The word ioculator could not be parsed. Trying a normal dictionary lookup:
jŏcŭlātor, ōris, m. [joculor], a jester, joker (rare but class.): huic joculatorem senem illum interesse sane nolui, Cic. Att. 4, 16, 3.
Plur.: scenici, Firm. Math. 8, 22.