to sing treble or to sing as a woman; or, to shape pieces of wood, making staffs, rods, etc.(?) (see Molina)
Orthographic Variants:
tlapitzaua
Alonso de Molina:
tlapitzaua. ni. (pret. onitlapitzauh.) cantar tiple, o como muger, o adelgazar o desbastar maderos o varas. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 132r. col. 1. Thanks to Joe Campbell for providing the transcription.