You may have noticed that there are non-fiction books called The Sibylline Oracle
s. These are said to be reproductions and interpretations of prophesies by at least one Sibyl. Though there is a big question mark on the "interpretation" part, and if, in fact, these were written by a sibyl.
But I thought I would take a minute and help you with a few pronunciations and meanings.
First: Sibylline Merriams pronunciation is ˈsi-bə-ˌlīn, -ˌlēn
Basically the name Sibyl with een or ine.
Sibylline is an adjective to describe a female sibyl (who by definition is an oracle or a female prophet).
The name can also be assigned to their prophesies.
In addition the name oracle-typically referring to a male prophet, can be assigned to the holy place where they make their prophesies.
The Sibylline Oracle