Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
restĭcŭla, ae, f. dim. [restis], a small rope, a cord, line, Cato, R. R. 110; Varr. R. R. 1, 41, 5; Cic. Scaur. Fragm. p. 261 fin. Orell.; Amm. 14, 7, 15; Vulg. 3 Reg. 7, 23.