ixmancahuia.

Headword: 
ixmancahuia.
Principal English Translation: 

to tell someone their faults to their face (see Molina)

Orthographic Variants: 
ixmancauia
IPAspelling: 
iːʃmɑnkɑwiɑ
Alonso de Molina: 

ixmancauia. nite. (pret. oniteixmancaui.) lo mesmo es que ixcomaca.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 45v. col. 2. Thanks to Joe Campbell for providing the transcription.