a spinet, an old-fashioned stringed musical instrument with keys
Orthographic Variants:
petlacal mecaueuetl, petlacal mecauehuetl
Alonso de Molina:
petlacal mecaueuetl. monacordio. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 81r. col. 1. Thanks to Joe Campbell for providing the transcription.