wi- / Indo-European roots
Apart, in half.
1. Suffixed form *wi-ito-. wide from Old English wīd, wide (< "far apart"), from Germanic *wīdaz.
2. Suffixed (comparative) form *wi-tero-.
a. with, withers from Old English wither, against, with its derivative with, with, against;
b. guerdon; widdershins from Old High German widar, against. Both a and b from Germanic *withrō, against.
[Pokorny 1. u̯ī̆- 1175.]