Definify.com
Webster 1913 Edition
Sibylline
Sib′yl-line
,Adj.
[L.
sibyllinus
.] Pertaining to the sibyls; uttered, written, or composed by sibyls; like the productions of sibyls.
Sibylline books
. (a)
(Rom. Antiq.)
Books or documents of prophecies in verse concerning the fate of the Roman empire, said to have been purchased by Tarquin the Proud from a sibyl.
(b)
Certain Jewish and early Christian writings purporting to have been prophetic and of sibylline origin. They date from 100
b. c.
to a. d.
500.Webster 1828 Edition
Sibylline
SIB'YLLINE
,Adj.