xumullalia.

Headword: 
xumullalia.
Principal English Translation: 

to make corners (see Molina)

Orthographic Variants: 
xomollalia
Alonso de Molina: 

xumullalia. nitla. hazer rincones.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 162r. col. 1. Thanks to Joe Campbell for providing the transcription.