Ossory. A district in Ireland;

emigration from, to Brittany, [22]

Otherworld. The Celtic, [171-172];

Fairyland identified with, [327]

Ouessant. An island off the coast of Brittany;

St Pol in, [365];

the costume of the women of, [374-375]

Oust. A river in Brittany, [205]

Owain. A Welsh chieftain, son of Urien;

Taliesin the bard of, [22]