-pillo.

Headword: 
-pillo.
Principal English Translation: 

one's master, lord; the niece or nephew of a woman (see Lockhart)

Alonso de Molina: 

nopilo. mi sobrino, dize la muger.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 73v. col. 2. Thanks to Joe Campbell for providing the transcription.

Lockhart’s Nahuatl as Written: 

pilli, -yōtl. one's master, lord; the niece or nephew of 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), 230.

themes: 
Family, Kinship, Descent