to sleep with a woman (see Molina, who has conjugated the verb in the first-person singular)
Alonso de Molina:
itlan nicochi. (pret. oitlan nicoch.) dormir con muger. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 43r. col. 2. Thanks to Joe Campbell for providing the transcription.