to shelter, or save something from the wind; to shelter oneself from the wind; or, to cover someone up to protect that person from the wind (see Molina)
IPAspelling:
ehkɑtsɑkwiliɑ
Alonso de Molina:
ecatzacuilia. n. (pret. onecatzacuili.) abrigar, o guardar algo del viento.
ecatzacuilia. nin. (pret. oninecatzacuili.) abrigarse del viento.
ecatzacuilia. nite. (pret. oniteecatzacuili.) abrigar a otro del viento. 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.