reverential ending used with verbs already in the reflexive
-TZINOĀ compounding verbal element used to form the honorific of reflexive verbs The same vowel length problems across sources discussed under –TZIN-TLI apply to –TZINOĀ, since the latter is a derivation of the former. See the discussion under –TZIN-TLI. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 313.
Lockhart’s Nahuatl as Written:
Class 3 reverential suffix of verbs, used sometimes over and above the normal reverential, but especially when the reflexive prefix has already been used in a semantically meaningful fashion. pret. -tzīnoh. 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), 240.