atoyahuia.

Headword: 
atoyahuia.
Principal English Translation: 

to throw something or someone into a river; or, to throw oneself into a river (see Molina and Karttunen)

Orthographic Variants: 
atoyauia
Alonso de Molina: 

atoyauia. nin. (pret. oninatoyaui.) echarse enel rio.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 9r. col. 1. Thanks to Joe Campbell for providing the transcription.

atoyauia. nite. (pret. oniteatoyaui.) echar aotro enel rio.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 9r. col. 1. Thanks to Joe Campbell for providing the transcription.

atoyauia. nitla. (pret. onitlaatoyaui.) echar otra qualquiera cosa el rio abaxo.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 9r. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

ĀTŌYĀHUIĀ vrefl,vt to throw oneself in the river; to throw someone or something in the river / echarse en el río (M), echar a otro en el río (M), echar cualquier cosa el río abajo (M)[(1)Bf.11r]. See ĀTŌYĀ-TL, -HUIĀ.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 14.

See also: 
ātoyāhuīliā.