one who impedes the passage of another going down the road (see Molina; translation here to English by Stephanie Wood)
Alonso de Molina:
teyacatzacuiliani. el que ataja los passos al que camina. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 94r. col. 1. Thanks to Joe Campbell for providing the transcription.