tepotzotl.

Headword: 
tepotzotl.
Principal English Translation: 

a lump, or a bump

Gran Diccionario Náhuatl, citing A. Wimmer, and the French term bosse; https://gdn.iib.unam.mx/diccionario/tepotzotl/64155

Orthographic Variants: 
tepotzohtl
Attestations from sources in English: 

For examples of a person with a hunchback and an eagle with one, see our Visual Lexicon of Aztec Hieroglyphs:
Cuauhtepotzo (MH732v), https://aztecglyphs.wired-humanities.org/content/cuauhtepotzo-mh732v
tepotzotli (FCbk8f19v), https://aztecglyphs.wired-humanities.org/content/tepotzotli-fcbk8f19v
And, forthcoming in the same digital collection: Tepotzotlan (Osu34v). (SW)

See also: 
tepotzotli.