four groups, (the people of) something divided into four parts
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), 226.
Molina adds the "from" or "to" element in association with the four directions, a translation of the -pa ending.=, giving us at four places; four places; in four directions; in four places; on four sides.