Definition of "souari"

Among a variety of specimens, we collected some fine plants of the Tonquin bean, the Souwarrow nut, the wild orange, and a species of medlar.

1816, George Pinckard, Notes on the West Indies‎, page 189

Souari nut, or butternut.—This nut, like the last, is a native of British Guiana, and is the fruit of the Caryocar nuciferum, a noble tree, growing a hundred feet high, having large, broad, trifoliate leaves, resembling those of our common horse-chestnut, but not quite as broad.

1896, Andrew Samuel Fuller, The Nut Culturalist‎, page 280