xillancuauhtiliztli.

Headword: 
xillancuauhtiliztli.
Principal English Translation: 

a pain of the lower intestines (?) (see Molina)

Orthographic Variants: 
xillanquauhtiliztli
Alonso de Molina: 

xillanquauhtiliztli. dolor de hijada
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 159r. col. 2. Thanks to Joe Campbell for providing the transcription.