they are there; or, they are fair and complete or thorough (see Molina)
Orthographic Variants:
uel izqui
Alonso de Molina:
uel izqui. estan, o son justos y cabales. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 156r. col. 2. Thanks to Joe Campbell for providing the transcription.