Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
frĭcātus, ūs, m. [frico], a rubbing, rubbing down (post-Aug.): emendat dentium vitia crebro fricatu, Plin. 23, 7, 63, § 124; 13, 15, 30, § 99.