tzotl.

Headword: 
tzotl.
IPAspelling: 
tsotɬ
Alonso de Molina: 

tzotl. lo mesmo es que tzocuitlatl.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 154r. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

TZO-TL sweat, bodily waste, filth / sudor espeso del cuerpo (M), sudor, suciedad, inmundicia (S) In the sources for this dictionary this is found only as an element of compounds, and with the sense of ‘foulness, rottenness,’ but M has it as a free form.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 319.