Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
per-paucŭlus, a, um, adj. dim., very little, very few: deduxit in Academiam perpauculis passibus, Cic. Leg. 1, 21, 54; M. Aur. ap. Front. Ep. ad M. Caes. 1, 3 Mai.