Principal English Translation: 

an edible root much like a sweet potato. camohtli
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 213.

Alonso de Molina: 

camotli. batata, rayz comestible.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 12r. col. 2. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

CAMOH-TLI pl: -MEH ~-TIN sweet potato / batata, raiz comestible (M), camote, raiz comestible bien conocida (R)
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 24.

Attestations from sources in English: 

puxcamotli = a variety of camote (poxcauh- = moldy)
Frances F. Berdan and Patricia Rieff Anawalt, The Codex Mendoza, 1992, vol. 1, 200).