Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Tractīcĭus or -tĭus, ii, m. [traho], The Dragged, a nickname of Heliogabalus, who, after having been slain, was dragged through the streets, Aur. Vict. Ep. 23 fin.; Lampr. Heliog. 17.