What does "tegu" mean?

Any of the South American lizards of the families Teiidae and Gymnophthalmidae.

Tegu

Common synonyms include: argentine tegu, black and white tegu, jacuaru, lizard, salipenter, salvator merianae.

/ˈteɪɡuː/ noun

noun ·Rare ·Advanced level

Noun

1
Any of the South American lizards of the families Teiidae and Gymnophthalmidae.
2
Any of the South American lizards of the families Teiidae and Gymnophthalmidae.; especially any of genus Tupinambis, which is sometimes kept as a pet.

From teguexin, from Nahuatl tecoixin (“lizard”).