words of one syllable, in

In simple terms, as in I don't understand financial derivatives-can you explain them in words of one syllable? [Colloquial; 1920s]

Name	Pronounced	Usage
Cornelia	[kɔ:'ni:ljə]
Ingi	-	Ancient Scandinavian
Safi	-	Arabic
Devdas	-	Indian, Hindi
Tsholofelo	-	Southern African, Tswana
Kisecawchuck	-	Native American, Cree