See an image that represents Chichimecatl in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
huehue Aculmiztli chichimecatl teuhctlato ynteyacancauh catca yn aculhuaque. yn cuhuatl ychan tlaca. auh yehuatl in quauhtzonyotl mochihuaco yn tlahtocatlacamecayotica yn vmpa cohuatl ychan. = Huehue Acolmiztli Chichimecatl was [then] a subordinate ruler and leader of the Acolhuaque and people of Coatl Ichan. And he became the lineage [head] of the line of rulers of Coatl Ichan. (central Mexico, early 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, 110–111.
yn manel Otontzintli ynmanel chichimecatl yn amo yximachoni yn amo maviztililoni yn ça ça vel tlapaltzitzintin yn motoliniani = although it be a [simpleminded] little Otomí or a [wild savage] Chichimec who is unknown and dishonorable, who are just really ordinary fellows, the poor.
Fray Alonso de Molina, Nahua Confraternities in Early Colonial Mexico: The 1552 Nahuatl Ordinances of fray Alonso de Molina, OFM, ed. and trans., Barry D. Sell (Berkeley: Academy of American Franciscan History, 2002), 134–135.
Tlā cuēl! Tlā xihuāllauh, Tlātlāhuic Chīchīmēcatl = Let it be soon! Come, Red Chichimec [i.e., the ax].
(Atenango, between Mexico City and Acapulco, 1629)
Hernando Ruiz de Alarcón, Treatise on the Heathen Superstitions That Today Live Among the Indians Native to This New Spain, 1629, eds. and transl. J. Richard Andrews and Ross Hassig (Norman and London: University of Oklahoma Press, 1984), 87.
oncan in quiminque ce covatl cenca tomahuac ce chichimecatl = There they shot a very thick snake with arrows; it was a Chichimeca who shot it.
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. 1, 24–25.
In Ocotelulco, in 1598, we see a person named Chichimecatzin. (See the examples from Spanish sources.)