Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
irrĕquĭes (inr-), ētis, adj. [2. in-requies], restless, unresting, always in action or motion (late Lat.): cor, Aus. Idyll. 12, 5: gens, id. ib. 12, 42.