yayacayotl.

Headword: 
yayacayotl.
Principal English Translation: 

frailty of one that is suffering and weakened (see Molina)

Alonso de Molina: 

yayacayotl. flaqueza de doliente y debilitado.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 30v. col. 1. Thanks to Joe Campbell for providing the transcription.