Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Dāvus (Davos), i, m., a name given to Roman slaves, freq. in the comedies of Plaut. and Ter.; cf. also Hor. S. 1, 10, 40; 2, 5, 91; id. A. P. 114; Pers. 5, 161; 168 al.
Prov.: Davus sum, non Oedipus, Ter. Andr. 1, 2, 24.