ahueyactli.

Headword: 
ahueyactli.
Principal English Translation: 

a type of rattlesnake (the image in the DFC shows a brown belly and a black or dark gray back)
Digital Florentine Codex/Códice Florentino Digital, edited by Kim N. Richter and Alicia Maria Houtrouw, "Book 11: Earthly Things", fol. 86r, Getty Research Institute, 2023. https://florentinecodex.getty.edu/en/book/11/folio/86r/images/0 Accessed 2 November 2025.

Orthographic Variants: 
aueiactli