a course, a route, a race; or, a league (see Molina)
IPAspelling:
sennetɬɑloːlistɬi
Alonso de Molina:
cennetlaloliztli. vna carrera, o vna legua. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 17r. col. 2. Thanks to Joe Campbell for providing the transcription.