coacuechtli.

Headword: 
coacuechtli.
Principal English Translation: 

a snake's rattle (see Molina); also, a person's name

Orthographic Variants: 
Cuvacuech
Alonso de Molina: 

coacuechtli. caxcauel de biuora.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 23r. col. 1. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

ypilçi ytoca cuvacuech = [She has] a child named Coacuech (Cuernavaca region, ca. 1540s)
The Book of Tributes: Early Sixteenth-Century Nahuatl Censuses from Morelos, ed. and transl. S. L. Cline, (Los Angeles: UCLA Latin American Center Publications, 1993), 162–163.

themes: 
Animals, Bugs, Insects, Reptiles, Fish, etc.
Snakes, Serpents