a person who makes crossbows (see Molina); the implication is that the crossbows are metal (tepoztli)
Orthographic Variants:
tepuz tlauitolchiuhqui, tepoz tlahuitolchiuhqui
Alonso de Molina:
tepuz tlauitolchiuhqui. ballestero que las haze. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 104v. col. 1. Thanks to Joe Campbell for providing the transcription.