yollo.

Headword: 
yollo.
Principal English Translation: 

skilled and sharp wit (see Molina)

Alonso de Molina: 

yollo. abil y agudo de ingenio.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 40r. col. 1. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

"The words '-yol' and '-yollo', literally 'heart' but often used for the mind, the emotions, and volition, figure in a large number of Nahuatl idioms. You will find a group of eleven of them in Molina under Noyol and Noyollo."
James Lockhart, Nahuatl as Written, 2001, 156.

See also: 
yollotl.