itlantli.

Headword: 
itlantli.
Principal English Translation: 

a medicinal shrub with thorns that were believed to resemble "old women's teeth"
(Central Mexico, 1571–1615)

The Mexican Treasury: The Writings of Dr. Francisco Hernández, ed. Simon Varey, transl. Rafael Chabrán, Cynthia L. Chamberlin, and Simon Varey (Stanford: Stanford University Press, 2000), 131.

Attestations from sources in English: 

"Thus liquid of a fistful of the leaves is given to be drunk against the inflammations of children's heads in order to cool them, for its heat is very moderate." (Central Mexico, 1571–1615)
The Mexican Treasury: The Writings of Dr. Francisco Hernández, ed. Simon Varey, transl. Rafael Chabrán, Cynthia L. Chamberlin, and Simon Varey (Stanford: Stanford University Press, 2000), 131.

themes: 
Health, Sickness, Wellness, Medicine