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
Tinuviel	-	Literature
Overton	['əuvətn]
Ingrid	ING-rid (Swedish), ING-ree (Norwegian), ING-grit (German)	Swedish, Norwegian, Danish, German
Saturn	SA-tərn (English)	Roman Mythology (Anglicized)
Alister	['ælistə]
'Ammar	-	Arabic