f. [cýse cheese, wuce a week] Cheese-week, the last week of eating cheese before Lent; septimana dominicæ quinquagesimæ. In the Greek church quinquagesima Sunday is the last day on which cheese may be eaten till Easter. The same rule prevailed in monasteries of the Benedictine order, which only were known in England before the Conquest. 'Abstinentiam ovorum et casei incipimus feria secunda post quinquagesimam:' -- Ðis sceal on Wódnes dæg, on ðære syxteóðan wucan ofer Pentecosten; and on Fríge dæg innan ðære cýs-wucan this [Gospel] must be on Wednesday, in the sixteenth week after Pentecost; and on Friday within the cheese-week, Rubc. Mt. Bos. 5, 43, Notes, p. 575. cys-wuce