Hippie

google

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1940s (denoting a person who is knowledgeable about jazz music and its associated culture): from hip3 + -y1.

wiktionary

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From 1953, a usually disparaging variant of hipster. See also etymology of hippie.

etymonline

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hippie (n.)

c. 1965, American English (Haight-Ashbury slang); earlier (1953) a variant (usually disparaging) of hipster (1941) "person keenly aware of the new and stylish," from hip "up-to-date" (see hip (adj.)). Related: Hippiedom.