neltoconi.

Cuix ticmati, in teoyotl? In nauhtlamantli, yhuan in neltoconi? = Do you know spiritual things? The four [prayers] and the [14] articles of the faith?
Bartolomé de Alva, A Guide to Confession Large and Small in the Mexican Language, 1634, eds. Barry D. Sell and John Frederick Schwaller, with Lu Ann Homza (Norman: University of Oklahoma Press, 1999), 71.

Jniquetetl neltoconi tla xiquito = do say the third thing to be believed (early seventeenth century, Central Mexico)
Louise M. Burkhart, Before Guadalupe: The Virgin Mary in Early Colonial Nahuatl Literature, Institute for Mesoamerican Studies Monograph 13 (Albany: University at Albany, 2001), 58.

Ynic õtetl neltoconi = the second thing to be believed believe (early seventeenth century, Central Mexico)
Louise M. Burkhart, Before Guadalupe: The Virgin Mary in Early Colonial Nahuatl Literature, Institute for Mesoamerican Studies Monograph 13 (Albany: University at Albany, 2001), 59.

Cuix ticmati, in teoyotl? In nauhtlamantli, yhuan in neltoconi? = Sabes la Dotrina Christiana? Las quatro Oraciones, y los Articulos.
Bartolomé de Alva, A Guide to Confession Large and Small in the Mexican Language, 1634, eds. Barry D. Sell and John Frederick Schwaller, with Lu Ann Homza (Norman: University of Oklahoma Press, 1999), 70–71.

Neltoconi = s. y adj.v. Articulo de fe; digno de creencia
Rémi Siméon, Diccionario de la lengua náhuatl o mexicana redactado según los documentos impresos y manuscritos más auténticos y precedido de una introducción (Mexico: Siglo Veintiuno, 1981, {1885}), 320.