Riff, Riffian -- (a Berber living in northern Morocco)
riff -- (a jazz ostinato; usually provides a background for a solo improvisation)
Overview of verb riff
The verb riff has 2 senses
flick, flip, thumb, riffle, leaf, riff -- (look through a book or other written material; "He thumbed through the report"; "She leafed through the volume")