pessimo
From LSJ
pessĭmo: āre, v. a. pessimus,
I to make utterly bad, to spoil completely, to ruin (eccl. Lat.): plebem, Vulg. Ecclus. 36, 11: te ipsum pessimabis, id. ib. 38, 22.—Pass.: pessimabor, Vulg. Ecclus. 11, 26.
pessĭmō, āre, maltraiter : Vulg.