a tribute item; it took the place of tequixaxalli in Quauhtinchan in 1534 (Cuauhtinchan, sixteenth century) Historia Tolteca-Chichimeca, eds. Paul Kirchhoff, Lina Odena Güemes, y Luis Reyes García (México: CISINAH, INAH-SEP, 1976), 231–232.
fourteenth ruler of the Mexica (fourth ruler in Tenochtitlan; fourteenth when counting from their time in Aztlan); also, a person's name (attested male), meaning "Obsidian Snake" Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 144–5. And, for the translation, see: Marc Zender, "One Hundred and Fifty Years of Nahuatl Decipherment," The PARI Journal 8:4 (Spring 2008), 25.
a staff with a crosspiece; a stick instrument, resting with the feet, and with the hands; or, the name of an instrument of one who works obsidian All of these definitions come from A. Wimmer and the Gran Diccionario Náhuatl, https://gdn.iib.unam.mx/diccionario/itzcolotli, with translations here to English--as needed--by Stephanie Wood.
a person's name (attested as male), a title, or perhaps a person affiliated with a place called Itzcotlan; the name clearly has something to do with obsidian (itztli)
a type of bird that was especially large, beautiful, and celebrated, as it would attack wild beasts and humans (according to Clavigero, v. 1, p. 44), and its neck, chest, and back feathers were golden, with wings and tail black (according to Sahagún); it is also called a Canadian eagle by naturalists Francisco Plancarte y Navarrete, Prehistoria de México: obra postuma del Ilmo, 1923, 50.
as a personal name, itzcuauhtli would be rendered Itzcuauh (see the Matrícula de Huexotzinco); one Itzcuauhtzin was a ruler of the Tenanca Atlauhteca Fernando Alvarado Tezozómoc, Crónica mexicáyotl, 1992, 47.
an interim ruler of Tlatelolco at the time of the Spanish invasion, he had the title tlacochcalcatl; he was the third child of Tlacateotzin (ruler of Tlatelolco) and Tlacateotzin's aunt-wife, Xiuhcanahualtzin (central Mexico, seventeenth century) Codex Chimalpahin: Society and Politics in Mexico Tenochtitlan, Tlatelolco, Culhuacan, and Other Nahuatl Altepetl in Central Mexico; The Nahuatl and Spanish Annals and Accounts Collected and Recorded by don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, eds. and transl. Arthur J. O. Anderson and Susan Schroeder (Norman: University of Oklahoma Press, 1997), vol. 2, 98–99, 112–113.
a goddess associated with Quauhtinchan; said to have a temple in Izúcar; also registered among the Pipiles (Nahuat people) of Guatemala and El Salvador; she is associated with a skirt of flint knives, which may connect her to Itzpapalotl
(Quauhtinchan, sixteenth century) Historia Tolteca-Chichimeca, eds. Paul Kirchhoff, Lina Odena Güemes, y Luis Reyes García (México: CISINAH, INAH-SEP, 1976), 227, note 3.