Keith “Cowboy” Wiggins, a member of Grandmaster Flash and the Furious Five, is credited for originating the term “Hip-Hop” in 1978. Keith “Cowboy” Wiggins used the term to mock a friend named Kokomo in the US Army chanting, “Hip-hop-hip-hop-hip-hop.” The term “Hip-Hop” was a similar rhythm to marching troops. Keith “Cowboy” Wiggins later incorporated the “hip-hop” rhythmic cadence in a stage performance.
Hip-Hop later began being used by disco musicians in a derogatory way to identify a new type of music being performed by MCs and DJs. But the name's negative connotation wore off and the name stuck.
“Rapper's Delight” by The Sugarhill Gang, released in 1979, begins with the phrase “I said a hip, hop, the hippie the hippie to the hip hip hop, and you don't stop”.