riff (n.)

"a repeated melodic phrase in jazz," 1935 (but said to have been used by musicians since c. 1917), of uncertain origin, perhaps a shortened form of riffle, or altered from refrain. The verb is attested by 1942, from the noun. Also in transferred or extended use (by 1970). Related: Riffed; riffing.

updated on August 17, 2021