Beautician: the increased attention to appearance and the growth in beauty parlours led to the creation of the beauty specialist.
Sex: as a term for sexual intercourse dates from the 1920s, in use because of a general liberation about the subject.
Astronaut: Space travel was still in the realm of science fiction, and the word appeared when the reality was merely an ambition.
Totalitarian: the term for monolithic authoritarianism presaged an era of dictators in Europe.
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Motel: a hotel for motorists; one of a number of "blended" words of the period.