tasación.

(a loanword from Spanish)

Headword: 
tasación.
Principal English Translation: 

tribute assessment, assignment of quotas
(a loanword from Spanish)

Orthographic Variants: 
tanxacio, tasancio
Lockhart’s Nahuatl as Written: 

tanxacio = tasación (assignment of quotas)
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), 120.