Bi-rinnan

According to the Old English Dictionary:

bi-rinnan

p. -ran; pp. -runnen to run as a liquid, hence,-To wet, bedew; fluere, perfundere, irrigare :-- Ðá wearþ beám monig blódigum teárum birunnen, sæp wearþ to swáte then many a tree became bedewed with bloody tears, their sap became [turned to] blood, Exon. 25 a; Th. 72, 19-23; Cri. 1175-1177. bi-rinnan