Yanacushman (possibly from Quechua yana black, kusma (or kushma in the local variant) nightdress, shirt of a woman, Diccionario Quechua - Español - Quechua, Academía Mayor de la Lengua Quechua, Gobierno Regional Cusco, Cusco 2005 (Quechua-Spanish dictionary) Ref Laime "black nightdress" or "black shirt", -n a suffix) is a mountain in the Huayhuash mountain range in the Andes of Peru, about 4800 meters high.