WOTAN, Old High German form of Odin
X
XANTHUS, river of Asia Minor
Y
YAMA, Hindu god of the Infernal Regions
YEAR, THE
YGDRASIL, great ash-tree, supposed by Norse mythology to support the universe
YMIR, giant, slain by Odin
YNYWL, Earl, host of Geraint, father of Enid
YORK, Britain