contoca in noyollo. (pret. ocontocac yn noyollo.) caer enla cuenta delo que se dize. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 24v. col. 1. Thanks to Joe Campbell for providing the transcription.
Attestations from sources in English:
Molina's phrase is given in the first person here (my heart).