The Collaborative International Dictionary of English v.0.48:

Balder \Bal"der\ (b[add]l"d[~e]r), prop. n. [Icel. Baldr, akin
   to E. bold.] (Scan. Myth.)
   The most beautiful and beloved of the gods; the god of peace;
   the son of Odin and Freya. [Written also Baldur.]
   [1913 Webster]