Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dĭēcŭla, ae, f. dim. [dies], the short space of a day, one little day, a little while, Plaut. Ps. 1, 5, 88; Ter. And. 4, 2, 27; Cic. Att. 5, 21, 13; and repeatedly in Ap.; so Met. 1, p. 106; ib. 6, 179.