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), 1.
I (first person subject prefix attached to a transitive verb that is not already compounded with a specific direct object, with the object here being "c")
the residents here; i.e. the indigenous people (see attestations)
(Cuauhtinchan, Puebla, sixteenth century) Luis Reyes García, "Ordenanzas para el gobierno de Cuauhtinchan, año de 1559," Estudios de Cultura Náhuatl 10 (1972), 312–313.
"maize from here," i.e. the preferred local grain, maize or corn (compared to caxtillan tlaolli, which is attested to mean wheat, the preferred Castillian grain)