an artillery person or one who shoots the harquebus
IPAspelling:
tɬekikistɬɑːski
Alonso de Molina:
tlequiquiztlazqui. artillero o arcabuzero. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 147v. col. 1. Thanks to Joe Campbell for providing the transcription.