-tepotzco.

Headword: 
-tepotzco.
Principal English Translation: 

behind

IPAspelling: 
-tepotsko
Frances Karttunen: 

-TEPOTZCO compound postposition behind, behind someone's back / detrás, a las espaldas (C) [(6)Cf.22r]. See TEPOTZ-TLI, -C(O).
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 231.

Horacio Carochi / English: 

-tepotzco = behind
Horacio Carochi, S.J., Grammar of the Mexican language with an explanation of its adverbs (1645), translated and edited with commentary by James Lockhart, UCLA Latin American Studies Volume 89 (Stanford: Stanford University Press, UCLA Latin American Center Publications, 2001), 513.

Lockhart’s Nahuatl as Written: 

complex relational word. see -īcampa. tepotztli, -co.
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 234.

Attestations from sources in English: 

Often works as a kind of suffix:
notepotzco = behind me
tlatepotzco = behind something
caltepotzco = behind the house

-icampa, -tepotzco = in the past, in one's absence
Horacio Carochi, S.J., Grammar of the Mexican language with an explanation of its adverbs (1645), translated and edited with commentary by James Lockhart, UCLA Latin American Studies Volume 89 (Stanford: Stanford University Press, UCLA Latin American Center Publications, 2001), 386–87 (with n2)

Attestations from sources in Spanish: 

caltzintli ompa mani teopan caltepotzco macuiltetl = la casa que está tras de la iglesia, que se compone de cinco aposentos (Tepotzotlan, 1631)
Vidas y bienes olvidados: Testamentos en náhuatl y castellano del siglo XVII, vol. 3, Teresa Rojas Rabiela, et al, eds. (México: CIESAS, 2002), 174–175.

tecaltepotzco = a espaldas de una casa (Ciudad de México, 1580)
Luis Reyes García, Eustaquio Celestino Solís, Armando Valencia Ríos, et al, Documentos nauas de la Ciudad de México del siglo XVI (México: Centro de Investigación y Estudios Superiores en Antropología Social y Archivo General de la Nación, 1996), 191.