tonaltlitl.

Headword: 
tonaltlitl.
Principal English Translation: 

fire of the sun (from a Nahua-Pipil song dedicated to the sun)
Rudolf van Zantwijk, "El futuro de la lengua náhuatl (nahuatla'tolli)," Estudios de Cultura Náhuatl 42 (2011), 259–265, see page 261.

Orthographic Variants: 
tonaltletl
Attestations from sources in English: 

Miqui anemi Tunal, Tunaltit (Pipil) = Miqui anemi Tonalli, Tonaltlitl (Classical Nahuatl) = the sun, the fire of the sun dies, it lowers to the water (This is just an excerpt. See the publication for the full song.)
Rudolf van Zantwijk, "El futuro de la lengua náhuatl (nahuatla'tolli)," Estudios de Cultura Náhuatl 42 (2011), 259–265, see page 261.