the offspring of a viper (see Molina); children born outside of wedlock?
Orthographic Variants:
tecutlacozauh cocone, teuctlacozauh cocone
Alonso de Molina:
tecutlacozauh cocone. biuoreznos. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 93v. col. 2. Thanks to Joe Campbell for providing the transcription.