something that climbs up a rope or cord (?) (see Molina)
Alonso de Molina:
mecatitech tlamatini. trepador assi. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 55r. col. 1. Thanks to Joe Campbell for providing the transcription.