Yiddish

Yiddish, a kind of mongrel language spoken by foreign Jews in England.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Yggdrasil * Ymir
Yeniseisk
Yeomanry
Yeomen
Yeomen of the Guard
Yeovil
Yetholm
Yezd
Yezidees
Yezo
Yggdrasil
Yiddish
Ymir
Yniol
Yoga
Yogin
Yokohama
Yokuba
Yonge, Charlotte Mary
Yoni
Yonkers
Yonne