A tough one, PaddyClink-
Webster's Collegiate Dictionary heads their entry "chili or chile or chilli." From Nahuatl Chilli (Spanish spelling of 1604).

In Velasquez "Spanish and English Dictionary," the entry is under 'chile'.

In the dictionary of the Royal Academy of Spain it is 'chile'. "Diccionario de la Lengua Española." The origin is given as Nahuatl chilli.
It also lists names of the major varieties. A chilero or chilera is one who cultivates or sells chiles.

In Hispanic New Mexico it is usually 'chile' but no no one will bite you if you spell it 'chili'.


Mexican Avocados are plentiful now; excellent as a side dish if mixed with green chile (to taste), fresh or powdered, and a little salt.