huixachin.

Headword: 
huixachin.
Principal English Translation: 

a spiny tree, or a hawthorn (see Molina); Gordon Whittaker says the term blends "huitz-" (thorns) with "achin" (a lot of, many), resulting in very thorny
Discovering Aztec Hieroglyphs, 2021, 99)

Orthographic Variants: 
uixachin
IPAspelling: 
wiʃɑtʃin
Alonso de Molina: 

uixachin. arbol espinoso, o espino.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 158v. col. 2. Thanks to Joe Campbell for providing the transcription.