pa. pple. In 3 Orm. forrþrisst. [f. FOR- pref.1 + thirst, pa. pple. of THIRST v.] Overpowered with thirst.

1

c. 1200.  Ormin, 8635. He … seȝȝde þatt he wass forrþrisst.

2

c. 1440.  Promp. Parv., 173/2. Forthyrst, sitibundus, siciens.

3