Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
-pe, an enclitic particle with an intensive force [Sauscr. -pa, -pi, which is similarly used; cf. -que], as in prope, nempe, quippe; and appearing as p in quispiam, uspiam, etc. (cf. Corss. Ausspr. 2, 846).