Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pūpilla (in the Tab. Heracl. lin. 4 and 5 abbrev. VP., i. e. PV. reversed, like O for Gaia and q for puella), ae, f. dim. [pupa].
pūpillo, āre, v. n., to utter the natural cry of the peacock, Auct. Phil. 26.