Meaning

noun someone who collaborates with an enemy occupying force

originNamed after Norwegian military officer Vidkun Quisling (1887–1945), who ruled the Nazi collaborationist government of Norway during World War Two. From Quislinus, Latinization of Quislin, based on the Danish place name Kvislemark. This term first appeared in 1940. The surname is seemingly supposed to mean "one who is from Kvislemark", and is equivalent to Kvisle(mark) + -ing (suffix designating a…

Etymology from Wiktionary, CC BY-SA 3.0