-huan.

Headword: 
-huan.
Principal English Translation: 

possessive plural nominal suffix
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), 217.

Attestations from sources in English: 

Not to be confused with: -huan = with, along with. (See our other entry for that one.)

Also, the plural part is the noun, not necessarily the possessor.
Rebecca Horn's notes from Nahuatl classes with James Lockhart. Card file in possession of Stephanie Wood.

See also: 
-huan.