Lewis & Short

contrā-versus, a, um, Part. [verto] (post-class.), turned opposite, lying over against; with dat.: Africa promontorio Apollinis Sardiniae, Sol. 27: spiranti Zephy. ro contraversa (urbs) Gumathenam contingit, Amm. 18, 9, 2.
Adv.: contrāver-sum, on the contrary, on the other hand, = contra, Sol. 10.