to hide oneself in the shade of something (see Molina)
Orthographic Variants:
tlayoualli nicnonaualtia
Alonso de Molina:
tlayoualli nicnonaualtia. (pret. tlayoualli onicnonaualti.) esconderse ala sombra de algo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 122r. col. 2. Thanks to Joe Campbell for providing the transcription.