Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
incorpŏrālĭtas, ātis, f. [incorporalis], incorporeity (post-class.), Macr. Somn. Scip. 1, 15, 13; 1, 11, 12; Tert. de Anim. 7.