Fýr-leóma

According to the Old English Dictionary:

an;

fýr-leóma

m. [leóma a ray of light, beam] A fire-beam; igneus splendor :-- Fýrleóma stód geond ðæt atole scræf a fire-beam stood through that horrid den, Cd. 216; Th. 272, 32; Sat. 128. fyr-leoma