Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-tĕpĕo, ŭi, 2, v. n., to be lukewarm: et lacus aestivis intepet Umber aquis, Prop. 4 (5), 1, 124: Lernaea palus, Stat. Th. 2, 377.