amacopiltia.

Headword: 
amacopiltia.
Principal English Translation: 

to put a paper cone on someone's head (see Molina and attestations)

IPAspelling: 
ɑːmɑkopiltiɑ
Alonso de Molina: 

amacopiltia. nite. (pret. oniteamacopilti.) encorozar a otro.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 4r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in Spanish: 

poner a alguien una corona de papel
Rémi Siméon, Diccionario de la lengua náhuatl o mexicana (1977), 439.