coatopilli.

Headword: 
coatopilli.
Principal English Translation: 

serpent staff

Eloise Quiñones Keber, "An Introduction to the Images, Artists, and Physical Features of the Primeros Memoriales," in Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 94.

IPAspelling: 
koːɑːtopiːlli
Attestations from sources in English: 

ycoatopil, yn imac, icac, çentlapal = his serpent staff is in his other hand
Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 94.