Fýr-wylm
Bosworth & Toller Anglo-Saxon Old English Dictionary - fýr-wylm
According to the Old English Dictionary:
es;
- fýr-wylm
- m. A fire-boiling, raging flame; flamma æstuans :-- Wyrm cwom óðre síþe, fýrwylmum fáh the dragon came a second time, coloured with raging flames, Beo. Th. 5335; B. 2671. fyr-wylm