noun
also tus·si ˈtüsē, -si ; or tut·si ˈtüts-
( plural tusi or tusis also tussi or tussis or tutsi or tutsis )
Usage: usually capitalized
: the ruling and cattle-owning class of the Rundi in Urundi in East Africa who presumably are cognate with the Hima people northward and whose extreme average height suggests an affinity with the Nilotes — called also Watusi