Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
saccellus, i, m. dim. [saccus], a little bag: sonantes aere, Petr. 140 fin.: calidi, i.e. dry poultices for the sick, Cels. 4, 4 med.; so Veg. 2, 24, 5; 3, 28, 3 al.; Vulg. Mich. 6, 11.