More on Rimfaxi from Infoplease:

• Rimfaxi - Rimfaxi [Frost-mane]. The horse of Night, the foam of whose bit causes dew. (Scandinavian ...
• Dictionary of Phrase and Fable: R - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "R"
• Horse - Horse The public-house sign. The White Horse. The standard of the Saxons, and therefore impressed ...