Folahs or Foolahs: How To spell?

The word Folahs is misspelled against Foolahs, a noun meaning "A peculiar African race of uncertain origin, but distinct from the negro tribes, inhabiting an extensive region of Western Soudan. Their color is brown or yellowish bronze. They are Mohammedans. Called also Fellatahs, Foulahs, and Fellani. Fulah is also used adjectively; as, Fulah empire, tribes, language."