cihuatlamachtia.

Headword: 
cihuatlamachtia.
Principal English Translation: 

for someone, in this case specifically a warrior, to act like a woman

James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 215.

Lockhart’s Nahuatl as Written: 

nitla, probably an ad hoc construction. Class 3: ōnitlacihuātlamachtih. cihuātl, tlamachtia or machtia with tla-, in what sense is not clear.
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 215.