coacihuiztli.

Headword: 
coacihuiztli.
Orthographic Variants: 
coaciuiztli
Alonso de Molina: 

coaciuiztli. gota, o perlesia.
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.