Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* aedĭfĭcātĭuncŭla, ae, f. dim. [aedificatio], a little building: ecquid de illa aedificatiuncula mandavisses, Cic. Q. Fr. 3, 1, 2, § 5.