Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Pimplēus (Piplēus), a, um, adj., Pimplean (v. Pimpleis); hence, sacred to the Muses: mons, Cat. 105, 1: antrum, Mart. 12, 11, 3.
Subst.: Pimplēa (Pi-plēa), ae, f.