, es; n. A work of works, great work; facinus egregium :-- Hereþreátas for ðam dǽdweorce Drihten héredon the army-bands praised the Lord for that great work, Cd. 170; Th. 214, 26; Exod. 575.
Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "dǽd-weorc." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 193.