the distance or space between beams in a wooden structure (see Molina)
Orthographic Variants:
quauhcoyauac, quauhcoyahuac
Alonso de Molina:
quauhcoyauac. lo mesmo es que calcayotl. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 86v. col. 1. Thanks to Joe Campbell for providing the transcription.