both of two things or parts; or two pairs (see Molina)
Alonso de Molina:
iyontlamanixti. ambas ados cosas o partes, o ambos ados pares. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 37r. col. 1. Thanks to Joe Campbell for providing the transcription.