ezcacahuatl.

Headword: 
ezcacahuatl.
Principal English Translation: 

crust of mange (see Molina)

Orthographic Variants: 
ezcacauatl
IPAspelling: 
eskɑkɑwɑtɬ
Alonso de Molina: 

ezcacauatl. costra o postilla de sarna.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 29v. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

Literally, a bloody nut/bean?