Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
con-servus, i, m., a fellow-slave, a companion in servitude, Plaut. Capt. 2, 1, 52; id. Mil. 2, 1, 67; Ter. Ad. 3, 3, 71; Cic. Clu. 64, 179; id. Fam. 12, 3, 2; Hor. S. 1, 8, 9; 2, 7, 80; Tac. Agr. 31; Dig. 11, 3, 14, § 2; Inscr. Orell. 4598 al.
In gen. plur. conservūm, Titin. ap. Fest. p. 270, 20 Müll. (Com. Rel. v. 132 Rib.).
Of a dog in relation to slaves, Col. 7, 12, 5.
Trop.: servi sunt, immo conservi, Sen. Ep. 47, 1.