juramento nicchihua.

(a loanword from Spanish)

Headword: 
juramento nicchihua.
Principal English Translation: 

to make an oath (see Molina; partly a loanword form Spanish, juramento, oath)

Orthographic Variants: 
iuramento nicchiua, iuramento nicchihua, juramento nicchiua
Alonso de Molina: 

iuramento nicchiua. (pret. juramento onicchiuh.) hazer juramento.
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.