Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
The word subiratum could not be parsed. Trying a normal dictionary lookup:
No entries found. Showing closest matches:
sŭb-īrascor, ātus, 3, v. dep. n., to be somewhat angry (Ciceronian): interdum soleo subirasci, Cic. Fin. 2, 4, 12: brevitati litterarum, id. Fam. 11, 24, 1: in Epirum quod me non invitas, subirascor, id. Att. 9, 7, 7.
Hence, sŭbīrātus, a, um, P. a., somewhat angry: tibi, Cic. de Or. 1, 16, 72; id. Fam. 3, 9, 1: anus subiratior, App. M. 4, p. 154 (dub. al. iratior).