to offer oneself in sacrifice to God; or, to offer something to the deities/divinities; or, to burn incense as an offering
Orthographic Variants:
iyaua, yaua, yahua
IPAspelling:
ijɑwɑ
Alonso de Molina:
iyaua. nin. (pret. oniniyauh.) ofrecerse alguno en sacrificio a dios.
iyaua. nitla. (pret. onitlayyauh.) ofrecer algo desta manera, o incensar. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 36v. col. 2. Thanks to Joe Campbell for providing the transcription.