Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sporta, ae, f. [cf. Gr. σπυρίς, basket σπάρτον, σπεῖρα], a plaited basket or ham per, Cato, R. R. 11, 4; Varr. and Sall. ap. Non. 177, 22 sq.; Col. 8, 7, 1; 12, 6, 1.