something that burns one's mouth a lot (see Molina)
IPAspelling:
kokopɑhtik
Alonso de Molina:
cocopatic. cosa que quema mucho la boca. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 23v. col. 2. Thanks to Joe Campbell for providing the transcription.