bikini: [20] For Frenchmen, the sight of the first minimal two-piece swimming costumes for women produced by fashion designers in 1947 was as explosive as the test detonation of an atom bomb by the USA at Bikini Atoll in the Marshall Islands, in the western Pacific Ocean, in July 1946. Hence their naming it the ‘Bikini’, the first record of which is in the August 1947 issue of Le Monde Illustré. English acquired the word in 1948. The monokini, essentially a braless bikini, first appeared in 1964, the inspiration for its name being the accidental resemblance of the element bi- in bikini to the prefix bi- ‘two’. [bikini etymology, bikini origin, 英语词源]