Ge-twinness

According to the Old English Dictionary:

e;

ge-twinness

f. Pairing, joining of two identical things, in grammar, repetition of a word :-- Epizeuxis, on lýden super-conjunctio, on englisc getwynnys, þonne man cwyð twá gelíce word on ánum verse, swá swá ys þis consolamini, consolamini, Angl. viii. 331, 35. ge-twinness