Lexicographer Jesse Sheidlower, the principal American editor of the Oxford English Dictionary, argues that the terms hipster and hippie derive from the word hip, whose origins are unknown. as per Wiki
The Hippie subculture was a youth movement that began in the US during the early 1960s and spread around the world, The word hippie derives from hipster, and was initially used to describe beatniks who had moved into San Francisco's Haight-Ashbury distri