yetlaztaya.

Headword: 
yetlaztaya.
Principal English Translation: 

daybreak becomes clearer, or dawn (see Molina)

Alonso de Molina: 

yetlaztaya (pret. ye otlaztayac.) aclarar el alua, o amanecer.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 36r. col. 1. Thanks to Joe Campbell for providing the transcription.

themes: 
Time, Calendar, Frequency