Ge-ónétan

According to the Old English Dictionary:

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ge-ónétan

To make useless :-- Giónétaþ l gemerras occupat, Lk. Skt. Lind. 13, 7. Geónét occupatus, Lye. [Cf.(?) Icel. ú-nýta to make useless, destroy.] ge-onetan