All right... that's enough.

Here's the official explanation straight out of the 1980 VW Vanagon sales
brochure:

"Vanagon" is a new name.  You probably haven't seen not heard it before.
It's actually a combination of "van" and "station wagon".  Vanagon.  Not
only a new name -- a totally new kind of vehicle from Volkswagen.

There's more, but I thought that was enough.

Cheers,

Jeff