Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dēlīrāmentum (in the Fronto MS. written delēr.), i, n. [deliro], nonsense, absurdity (in Plaut. and in post-Aug. prose), Plaut. Am. 2, 2, 64; id. Men. 5, 5, 21; Plin. 2, 7, 5, § 17; Fronto Ep. ad M. Caes. 2, 1; Vulg. Luc. 24, 14.