Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
bubsĕqua (also bobsĕqua and bū-sĕqua), ae, m. [bos-sequor], a neatherd, herdsman (post-class.), App. M. 8, p. 201, 13; id. Flor. 1, n. 3; Sid. Ep. 1, 6.