Principal English Translation: 

us, first person plural object, prefix of verbs

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), 232.

Attestations from sources in English: 

Tech can appear at the beginning or in the middle of a word: titēchitta = you (singular) see us.
Michel Launey, An Introduction to Classical Nahuatl, translated and adapted by Christopher MacKay (Cambridge: Cambridge University Press, 2011), 26.