occeppa ninopiltilia. (pret. occeppa oninopiltili.) remozarse. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 75r. col. 1. Thanks to Joe Campbell for providing the transcription.
Attestations from sources in English:
Molina gives this in the first person reflexive, present tense.