ouicayotl. dificultad, o peligro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 78r. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
OHUIHCĀYŌ-TL danger, difficulty / dificultad o peligro (M) [(1)Cf.53v,(1)Rp.44]. See OHUIH, -YŌ. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 177.