holy **** I never knew this, I was wandering around wikipedia and I stumbled upon the probable origin of epona's name
http://en.wikipedia.org/wiki/Celtic_mythology
Others
Other important goddesses include Brigid (or Brigit), the Dagda's daughter; Aibell, Áine, Macha, and the sovereign goddess, Ériu. Notable is Epona, the horse goddess, celebrated with horse races at the summer festival. Significant Irish gods include Nuada Airgetlám, the first king of the Tuatha Dé Danann; Goibniu, the smith and brewer; Dian Cecht, the patron of healing; and the sea god Manannán mac Lir.
EPONA IS A GOD