Fer-blǽd

According to the Old English Dictionary:

es;

fer-blǽd

m. [fér- = fǽr-sudden, blǽd a blast] A sudden or fearful blast; repentīnus flātus :-- Ic lǽran wille ðæt gé eówer hús gefæstnige, ðý-læs hit férblǽdum windas toweorpan I will exhort that ye make your house firm, lest winds overthrow it with sudden blasts, Exon. 75 a; Th. 281, 21; Jul. 649. fer-blæd