xiuhyoua. (pret. oxiuhyoac.) hazer caña el mayz, o henchirse de yerua. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 159v. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
XIUHYŌHUA for something to become grassy / se enyerba (Z) [(3)Zp.54,218,229]. See XIUHYŌ-TL. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 327.