Bi-gellan

According to the Old English Dictionary:

bi-gellan

p. -geal, pl. -gullon; pp. -gollen To celebrate by song, to scream; canendo celebrare, exclamare :-- Ful oft ðæt earn bigeal the eagle screamed that often, Exon. 81 b; Th. 307, 16; Seef. 24. bi-gellan