Ge-berhtan

According to the Old English Dictionary:

-byrhtan, -birhtan;

ge-berhtan

p. te; pp. ed [ge-, berhtan to shine] To make bright, brighten, enlighten; illūmīnāre, clārĭfĭcāre :-- Ðe wuhta gehwæs wlite geberhteþ which brightens the beauty of everything, Bt. Met. Fox 21, 64; Met. 21, 32. ge-berhtan