The Collaborative International Dictionary of English v.0.48:
Arianrod \Arianrod\ n. (Welsh mythology) a goddess famous for her beauty; the mother of Dylan. Syn: Arianrhod. [WordNet 1.5]WordNet (r) 3.0 (2006):
Arianrod n 1: Celtic goddess famous for her beauty; mother of Dylan [syn: Arianrhod, Arianrod]