What is "nellut"

Koodoo \Koo"doo\, n. (Zo["o]l.) A large South African antelope ( Strepsiceros kudu). The males have graceful spiral horns, sometimes four feet long. The general color is reddish or grayish brown, with eight or nine white bands on each side, and a pale dorsal stripe. The old males become dark bluish gray, due to the skin showing through the hair. The females are hornless. Called also nellut. [Written also kudu.]