Oromo language
Zay is an unwritten language. Most speakers are multilingual in other Gurage languages, in the Oromo language, and in Amharic. The language is geographically concentrated around Lake Zway; specifically, in Herera, Meki, Ziway, and the five islands: Fundurro Island (Famat or Getesemani Island) the smallest island; Tsedecha Island (Aysut Island), next to the biggest island; Debre-Tsion Island, the largest island; Gelila Island; and Debre Sina Island. It is an endangered language, with speakers migrating to the mainland adopting the Oromo language, and increasing use of Oromo by the younger generations on the Zay islands.