, an ; f. A week of fasting, a week in Lent :-- On þám drihtenlican dæge þǽre forman fæstenwucan on the Sunday of the first week in Lent, Hml. S. 23 b, 111.
Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "fæsten-wicu." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 202.