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.
Lockhart’s Nahuatl as Written:
nāhui, -ca used in making a kind of ordinal number, -meh. 226