heterogeneous people of eastern Burma, 1759 (as Carian), from Burmese ka-reng "wild, dirty, low-caste man" [OED].
Karen (2)
fem. proper name, Danish shortened form of Katherine. Rare before 1928; a top-10 name for girls born in the U.S. 1951-1968.
karabiner
karaoke
karat
karate
Karelia
Karen
Karl
karma
karmic
karoo
karst