Ge-twífealdad

According to the Old English Dictionary:

ge-twífealdad

l. ge-twifealdian; pp. ad To double, and add :-- Daga gehwylce ús getwifealdað þes middangeard manegu sár hic mundus tot nobis quotidie dolores ingeminat, Gr. D. 259, 1. [O.H. Ger. ge-zwifaltót geminatus.] ge-twifealdad