Definition of Pétainist in English:

Pétainist

Pronunciation /ˈpɛtənɪst/ /ˈpeɪtənɪst/ /pɛˈtɛnɪst/

noun

  • A supporter of Pétain or his policies; (hence, more generally) a collaborator or supporter of collaboration. In later use also: a person espousing the ultra-conservative, nationalist ideology associated with the Vichy regime and its supporters.

adjective

  • Of, relating to, or supportive of Pétain or his policies; (hence, more generally) inclined to collaborate. In later use also: espousing the ultra-conservative, nationalist ideology associated with the Vichy regime and its supporters.

Origin

1940s; earliest use found in Nevada State Journal. From the name of Henri Philippe Pétain, French military commander and head of the Vichy government between 1940 and 1944, during which time he collaborated with the German occupying forces + -ist, perhaps after French pétainiste (although this is first attested later: 1944 as adjective, 1946 as noun).