Origin: < MLowG weddersinnes < MHG widdersinnes < wider, against (akin to with) + sinnes, gen. of sin, way, direction
See widdershins in American Heritage Dictionary 4
Origin: Middle Low German weddersinnes
Origin: , from Middle High German widersinnes
Origin: : wider, back (from Old High German widar; see wi- in Indo-European roots)
Origin: + sinnes, in the direction of (from sin, direction, from Old High German; see sent- in Indo-European roots).