tlathui (verb) = to dawn, to become light
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 165.
Auh in ie iuhqui, in omestin õmomamaiauhque tleco, in icoac ie otlatlaque: niman ic quichistimotecaque in teteu, in campa ic quiçaquiuh nanaoatzin, in achto onuetz tleco: inic tonaz, inic tlathuiz. = And after this, when both had cast themselves into the flames, when they had already burned, then the gods sat waiting [to see] where Nanauatzin would come to rise-- he who first fell into the fire-- in order that he night shine [as the sun]; in order that dawn might break. (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 7 -- The Sun, Moon, and Stars, and the Binding of the Venus, No. 14, Part VIII, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 6.
cujx tonaz: tlathujz = Perhaps he will cause the sun to shine, to dawn (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 189.