Research Literature
DOE:
Cameron, Angus, Ashley Crandell Amos, Antonette di Paolo Healey, et al. (eds.).
Dictionary of Old English (A to G). CD-Rom. Toronto: Pontifical Institute of Mediaeval Studies for the Dictionary of Old English Project, 2008.
Rit:
Lindelöf, Uno Lorenz.
Rituale Ecclesiae Dunelmensis. The publications of the Surtees Society. 140. Durham: Andrews, 1927.
Cedrisc appears to be an adjective but the L lemma is a noun.