yollaiximachiliztli.

Headword: 
yollaiximachiliztli.
Principal English Translation: 

natural instinct (see Molina)

IPAspelling: 
joːllɑiːʃihmɑtʃilistɬi
Alonso de Molina: 

yollaiximachiliztli. instincto natural.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 40r. col. 1. Thanks to Joe Campbell for providing the transcription.