coyoacxoyatl.

Headword: 
coyoacxoyatl.
Principal English Translation: 

a squill (see Molina); a perennial medicinal plant, a large bulb in the lily family that grows to about a meter and a half tall and has dark green leaves and a white flower, similar to the common onion; can also resemble the hyacinth, with small cluster of violet-blue or blue-striped flowers

IPAspelling: 
kojoːɑkʃojɑtɬ
Alonso de Molina: 

coyoacxoyatl. cebolla albarrana.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 24r. col. 1. Thanks to Joe Campbell for providing the transcription.