Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pertaedesco, dŭi, 3, v. inch. n. [pertaedet], to become disgusted or wearied with any thing (ante- and post-class.): ne pertaedescat, Cato, R. R. 156: cum jam omnes pertaeduissent, Gell. 1, 2, 6.