A

(an indicator of indefiniteness)

ending that makes a noun into a verb

soul (usually given with a possessor prefix)
(a loanword from Spanish)

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), 211.

refers to someone's possessions, things that pertain to him or her; loosely, property

James Lockhart, The Nahuas after the Conquest: A Social and Cultural History of the Indians of Central Mexico, Sixteenth through Eighteenth Centuries (Stanford: Stanford University Press, 1992), 153.

an instrument of some kind; tool; means of achieving

up

Horacio Carochi, S.J., Grammar of the Mexican language with an explanation of its adverbs (1645), translated and edited with commentary by James Lockhart, UCLA Latin American Studies Volume 89 (Stanford: Stanford University Press, UCLA Latin American Center Publications, 2001), 344 n3.