From the Spanish, it's the term for a horse with a golden coat & a white or silver mane & tail
[DOC] [TLE] Horses of Gold: The Palomino in History and Folklore  Of Horse ... [PAR] Nov 3, 2012 ... Prized for its striking golden coat, the palomino has a rich and ancient ... the 
palomino is defined by its golden body coat and silver-white mane and tail.