domingo.

This loanword is fairly common in colonial Nahuatl. Alva's guide to confession uses it 10 times out of 260 total loanword appearances of various kinds. The percentages of appearances of certain loans in Alva are very consistent with Chimalpahin, who also wrote in the seventeenth century.
See Sell's comments in Bartolomé de Alva, A Guide to Confession Large and Small in the Mexican Language, 1634, eds. Barry D. Sell and John Frederick Schwaller, with Lu Ann Homza (Norman: University of Oklahoma Press, 1999), 23.

A testator in Amecameca in 1625 mentions a large parcel of land dedicated to Santo Domingo, which she wishes to divide between two grandsons. They are to cultivate it and use the proceeds to serve the saint's day and are not ever to sell the land.
Vidas y bienes olvidados: Testamentos en náhuatl y castellano del siglo XVII, vol. 3, Teresa Rojas Rabiela, et al, eds. (México: CIESAS, 2002), 166–167.

santo domīgo teopixqui = a Dominican friar
Here in This Year: Seventeenth-Century Nahuatl Annals of the Tlaxcala-Puebla Valley, ed. and transl. Camilla Townsend, with an essay by James Lockhart (Stanford: Stanford University Press, 2010), 72–73.

yn npilhua donmigon jusep ynhua jua matheo = my children Domingo, Josef, and Juan Mateo (Azcapotzalco, 1738)
Beyond the Codices, eds. Arthur J.O. Anderson, Frances Berdan, and James Lockhart (Los Angeles: UCLA Latin American Center, 1976), Doc. 17, 108–109.

oc ce domingo onechmictic (Jalostotitlan, Jalisco, 1611)
Beyond the Codices, eds. Arthur J.O. Anderson, Frances Berdan, and James Lockhart (Los Angeles: UCLA Latin American Center, 1976), Doc. 27.

yn ompa quimopielia Domingo Ramostzin (S. Simón Pochtlan, Azcapotzalco, 1695)
Beyond the Codices, eds. Arthur J.O. Anderson, Frances Berdan, and James Lockhart (Los Angeles: UCLA Latin American Center, 1976), Doc. 5.

nican ocatca - jueues - biernes - sabado - domingo yohuatzinco yn omocuepaya (Puebla, circa 1680–1700)
Frances Karttunen and James Lockhart, Nahuatl in the Middle Years: Language Contact Phenomena in Texts of the Colonial Period, Linguistics 85 (Los Angeles, University of California Publications, 1976), Doc. 9.

miercolestica yuan sabadotica mopouaz, auh yn domingotica mocha mopouaz (mid sixteenth century, Central Mexico)
Louise M. Burkhart, Before Guadalupe: The Virgin Mary in Early Colonial Nahuatl Literature, Institute for Mesoamerican Studies Monograph 13 (Albany: University at Albany, 2001), 127.

domicv = Domingo (Cuernavaca region, ca. 1540s)
The Book of Tributes: Early Sixteenth-Century Nahuatl Censuses from Morelos, ed. and transl. S. L. Cline, (Los Angeles: UCLA Latin American Center Publications, 1993), 114–115.

Sant Buenaventuratzin nusantotzin sabado hualathui domigo yn itlaçoylhuitzin = San Buenaventura, mi santo, el sábado para amanecer domingo que fue su amada fiesta (Tlaxcala, 1662–1692)
Juan Buenaventura Zapata y Mendoza, Historia cronológica de la Noble Ciudad de Tlaxcala, transcripción paleográfica, traducción, presentación y notas por Luis Reyes García y Andrea Martínez Baracs (Tlaxcala y México: Universidad Autónoma de Tlaxcala, Secretaría de Extensión Universitaria y Difusión Cultural, y Centro de Investigaciones y Estudios Superiores en Antropología Social, 1995), 534–535.