Dæg-cúþ

According to the Old English Dictionary:

dæg-cúþ

adj. Clear as daylight, perfectly known:--Ne þǽr ówiht inne ne belífe on heortscræfe heánra gylta, ꝥ hit ne sý dægcúð, ꝥ ꝥ díhle wæs, openum wordum eall ábæred nec lateat quidquam culparum cordis in antro, omnia quin luci verbis reddantur apertis, Dóm. L. 40. dæg-cuþ