-to.

Headword: 
-to.
Principal English Translation: 

went to do (past of the outward moving purposive motion suffix -tīuh/-to); or simply read as past tense

James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 239.

Lockhart’s Nahuatl as Written: 

pl. -toh.
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 239.

Attestations from sources in English: 

yn necito tlacpac = which appeared above (central Mexico, 1612)
Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 198–199.

Yālhua ōtictlàpalōtô = We went to greet him yesterday
Michel Launey, An Introduction to Classical Nahuatl, translated and adapted by Christopher MacKay (Cambridge: Cambridge University Press, 2011), 230.

-to = present and preterit
-tiuh = future
-tihui(h) = plural
Rebecca Horn's notes from Nahuatl classes with James Lockhart. Card file being harvested by Stephanie Wood.

Attestations from sources in Spanish: 

niman canato micquetl = fueron a traer la difunta (Tlaxcala, 1562)
Catálogo de documentos escritos en náhuatl, siglo XVI, vol. I (Tlaxcala: Gobierno del Estado de Tlaxcala y el Archivo Histórico del Estado de Tlaxcala, 2013), 11.

coahccoavito = salió a leñar (Tlaxcala, 1564)
Catálogo de documentos escritos en náhuatl, siglo XVI, vol. I (Tlaxcala: Gobierno del Estado de Tlaxcala y el Archivo Histórico del Estado de Tlaxcala, 2013), 29.

hualtzatzaqualoto = fue a cercar (Quauhtinchan, s. XVI)
Historia Tolteca-Chichimeca, eds. Paul Kirchhoff, Lina Odena Güemes, y Luis Reyes García (México: CISINAH, INAH-SEP, 1976), 139.