The Collaborative International Dictionary of English v.0.48:

Wol \Wol\, v. t. & i.
   See 2d Will. [Obs.] --Chaucer.
   [1913 Webster]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

WOL
       Wake On LAN (LAN, APM, BIOS)