Fýr-cyn
Bosworth & Toller Anglo-Saxon Old English Dictionary - fýr-cyn
According to the Old English Dictionary:
-cynn, es;
- fýr-cyn
- n. A kind of fire; igneum gĕnus :-- Mycel fýrcyn and mycel bryne a great kind of fire and a great burning, Ors. 6, 1; Bos. 115, 36. fyr-cyn