missa tenanquili piltontli.

(a loanword from Spanish)

missa tenanquili piltontli.
Principal English Translation: 

a child who helps out with masses and other jobs in the church (see monacillo -> monaguillo, RAE) (partly a loanword from Spanish, misa, a Catholic mass)

Orthographic Variants: 
misa tenanquili piltontli
Alonso de Molina: 

missa tenanquili piltontli. monazillo.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 57r. col. 1. Thanks to Joe Campbell for providing the transcription.