cocototzaui. ni. (pret. onicocototzauh.) tullirse. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 24r. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
COCOTOTZAHU(I) to be crippled / tullirse (M), se endurece, se entiesa, se dobla (T) [(3)Tp.115 ] . See COTOTZOĀ COCOTOTZAHUĪHUA nonact. COCOTOTZAHU(I) COCOTOTZAHUĪTIĀ caus. COCOTOTZAHU(I) Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 39.