to be resplendent, to shine; for a great cold to come from snow; or for a great burning sensation to be felt from a sore (see Molina)
Alonso de Molina:
mihiotia. (pret. omihioti.) echar de si resplandor, o proceder granfrio dela nieue, o gran ardor o dela llaga. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 56v. col. 1. Thanks to Joe Campbell for providing the transcription.