quislingize

verb2

1. •
   (old-fashioned) To corrupt by getting a significant number of members to collaborate with an enemy occupying force.

   • Norway was the scene of the original Quisling experiment and because of Norway's highly perfected state form it seemed a simple matter to quislingize the Norwegian educational system. — 1942
2. •
   (old-fashioned) To collaborate with an enemy occupying force.

   • At most a few dozen individuals, mostly with a prewar Fascist history, have quislingized — 1998