‖ guereza|ˈgɛrɪzə| [? African.] An Ethiopian monkey (Colobus guereza) with long hair and a bushy tail. 1859Wood Nat.Hist. I. 43 The beautifully adorned Guereza.1884–5Riverside Nat.Hist. (1888) V. 520 The guereza is found in the mountainous parts of Abyssinia.