by 1948, perhaps 1942, apparently originally a World War II military colloquialism, from a merger of gigantic + enormous.

German dive bomber of World War II, 1940, from German shortening of Sturzkampfflugzeug, from Sturz "fall" + Kampf "battle" + Flugzeug "aircraft."

1939, popularized in World War II army slang, from walk (v.) + talk (v.).

New York City borough, named for Catherine of Braganza, queen of English King Charles II.

also P.O.W., initialism (acronym) for prisoner of war, coined 1919 but not common until World War II.

Estonian capital, from Old Estonian (Finnic) tan-linn "Danish fort," from tan "Danish" + linn "fort, castle." Founded 1219 by Danish king Valdemar II.

city in Portugal (Portuguese Bragança), from Celtic briga "height." Catherine of Braganza (1638-1705) was the wife of Charles II.

"national traitor," especially during World War II in Nazi-occupied countries, "collaborationist," 1940, from Vidkun Quisling (1887-1945), Norwegian fascist politician who headed the puppet government during the German occupation of Norway in World War II; shot for treason after the German defeat. First used in London Times of April 15, 1940, in a Swedish context.

air arm of the German Wehrmacht in the World War II era, 1935, from German Luftwaffe, literally "air-weapon," from Luft (see loft (n.)) + Waffe (see weapon (n.)).

also state-side, 1944, World War II U.S. military slang, from the States "United States" (see state (n.2)) + side.