the female companion of a woman, or woman's sister, or her relative (see Molina)
Orthographic Variants:
teciuapo
Alonso de Molina:
teciuapo. compañera de muger, o hermana suya, o parienta. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 92v. col. 2. Thanks to Joe Campbell for providing the transcription.