v. Obs. [f. FOR- pref.1 + BURST.] intr. To burst asunder; to break.

1

a. 1000.  Laws Ethelred, III. iv., in Thorpe, Anc. Laws, I. 294. Slea man hine þæt him forberste se sweora.

2

c. 1205.  Lay., 1912.

        [He] breid Geomagog
þat him þe rug for-berst.

3