the oath has been taken (see Molina; partly a loanword form Spanish, juramento, oath)
Orthographic Variants:
iuramento oquichiuh
Alonso de Molina:
iuramento oquichiuh. iuramentado. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 44v. col. 1. Thanks to Joe Campbell for providing the transcription.