On Tue, 22 Jan 2002, Andy R wrote:
> I heard that wd stood for "Winchester Disk". Can
> anyone confirm this?

SCSI hard drives are "Winchester disks" too though... the wd(4) manpage
says:
     wd - WD100x compatible hard disk driver

So I think it does stand for Western Digital... I still have an old
WD1003 card around somewhere. :)