Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sparsim, adv. [sparsus, from 1. spargo], scatteredly, dispersedly, here and there (postclass. and very rare): defluere, App. M. 10, p. 255, 39: commeninisse haec, Gell. 11, 2, 5: dicere, Lact. 1, 2, 6.