habituated in something, or experimenting in it, or to have the intention and purpose of doing something (see Molina)
Alonso de Molina:
yeiuhca yyullo. abituado a alguna cosa, o experimentado enella, o tener intencion y proposito de hazer algo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 35r. col. 2. Thanks to Joe Campbell for providing the transcription.