Cú-horn

According to the Old English Dictionary:

cuu-horn, es;

cú-horn

m. A cow's horn; vaccæ cornu :-- Cuuhorn [cú- MSS. B. H.] biþ twegea pæninga wurþ a cow's horn shall be worth two pence, L. In. 59; Th. i. 140, 2. cu-horn