Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
prae-tĭmĕo, ŭi, 2, v. a. and n., to fear beforehand, to be in fear, be afraid (poet. and in post-Aug. prose): sibi praetimet, Plaut. Am. prol. 29: nil est miserius, quam praetimere, Sen. Ep. 98, 7: praetimens ne sibi desit (pecunia), Lact. 6, 17, 17: aeternitatem praetimendam, Tert. Res. Carn. 35 (in Tib. 3, 4, 14, the true reading is pertimuisse).