ecahuatza.

Headword: 
ecahuatza.
Principal English Translation: 

to air out, cool, dry, or refresh something by putting it in the open air or out in the breeze (see Molina)

Orthographic Variants: 
ecauatza
IPAspelling: 
ehkɑwɑːtsɑ
Alonso de Molina: 

ecauatza. nitla. (pret. onitlaecauatz.) orear algo, poniendolo al ayre.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 28r. col. 1. Thanks to Joe Campbell for providing the transcription.