tlathuinahuac.

Headword: 
tlathuinahuac.
Principal English Translation: 

nearly daylight, close to dawn (see Molina and Karttunen)

Orthographic Variants: 
tlathuinauac
IPAspelling: 
tɬɑtwinɑːwɑk
Alonso de Molina: 

tlathuinauac. cerca del alua.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 136v. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

TLATHUINĀHUAC close to dawn / cerca del alba (M) [(1)Cf.109r]. See TLATHUI,-NĀHUAC.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 297.