potoniliztli.

Headword: 
potoniliztli.
Principal English Translation: 

a stink, stench, bad smell (see Molina)

IPAspelling: 
potoːnilistɬi
Alonso de Molina: 

potoniliztli. hedor o olor.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 83v. col. 1. Thanks to Joe Campbell for providing the transcription.