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
Hortense	[hɔ:'tens]
Boyce	BOIS	English
Sol	[sɔl]
Nieve	-	Spanish
Branka	-	Serbian, Croatian, Slovene
Ebony	EB-ə-nee	English