Source : Webster's Revised Unabridged Dictionary (1913)

Foolahs \Foo"lahs`\, n. pl.; sing. {Foolah}. (Ethnol.)
   Same as {Fulahs}.

Fulahs \Fu"lahs`\, Foolahs \Foo"lahs`\, n. pl.; sing. {Fulah},
   {Foolah}. (Ethnol.)
   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.