Definition from Wiktionary, the free dictionary
From Proto-Germanic *dōg- (“day”), long-grade stem of *dagaz (“day”). Cognate with Old Norse dǫgr, Gothic -𐌳𐍉𐌲𐍃 (-dōgs) (in compounds); from the same Germanic root as dæġ, from Proto-Germanic *dagaz.
dōgor m, n
- (chiefly poetic) day