Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* sūdĭcŭlum (sūdŭc-), i, n. [sudor, producing sweat], a kind of whip or scourge, Plaut. Pers. 3, 3, 14; cf. Fest. p. 336 Müll.
* sūdŭcŭlum, i, n. dim. [sudes], a kind of whip, scourge: flagri, Plaut. Pers. 3, 3, 14 Ritschl N. cr. (cf. sudiculum).