cuauhchayahuac.

Headword: 
cuauhchayahuac.
Principal English Translation: 

a wooden bar, or wooden bars (see Molina)

Orthographic Variants: 
quauhchayauac, quauhchayahuac
Alonso de Molina: 

quauhchayauac. rexa de madera.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 86r. col. 2. Thanks to Joe Campbell for providing the transcription.