This might be just a supplemental entry adding to an entry in the Main Volume.
dreó
; I.add :-- Wiht ... fére fóddurwelan dreógeð the ship performs the office of providing a bountiful supply of food, Rá. 33, 10. Merrigenlice lofsangas sint tó dreógenne (agendi sunt), R. Ben. l. 37, 15.
Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "dreó." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 762.