tzopelia.

Headword: 
tzopelia.
Principal English Translation: 

for someone to become sweeter (see Molina)

IPAspelling: 
tsopeːliɑ
Alonso de Molina: 

tzopelia. ni. (pret. onitzopeliac.) endulcecerse.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 153v. col. 2. Thanks to Joe Campbell for providing the transcription.