huel nicchihua.

Headword: 
huel nicchihua.
Principal English Translation: 

to become skilled at doing something; or, to be handy with whatever one takes into one's hands (see Molina)

Orthographic Variants: 
uel nicchihua
Alonso de Molina: 

uel nicchiua (pret. uelonicchiuh.) amañarse a hazer algo, o darse buena maña enlo que toma entre manos.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 156v. col. 1. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

The example is in the first person.