Yoalli Ehecatl (The Night Wind). A manifestation of Tezcatlipoca, [66]
Yohualticitl. A name of Metztli, which see
Yolcuat. Form of Quetzalcoatl, [84]
Yopi. Indian tribe; Xipe adopted from, [92]
Yucatan. Settlement of the Maya in, [151]–152;
architectural remains in, [178]
Yucay. Inca ruins at, [269]
Yum Kaax (Lord of the Harvest Fields). Maya deity; God E probably identical with, [174]
Yunca. Name given to the tropical and lowland districts of Peru, [255]
Yupanqui Pachacutic. Ninth Inca, known also as Pachacutic. See Pachacutic