quexilli. la ingre. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 89v. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
QUEXĪL-LI groin / la ingre (M), su ingle (T for possessed form) [(5)Tp.133,177]. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 210.