Ynyr

Either of two people or places who fought some kind of contest or battle in the time of Arthur.

In Culhwch and Olwen, Arthur’s chief gatekeeper, Glewlwyd, remarks to Arthur that he was

in the contest between the two Ynyrs, when the twelve hostages were brought from Llychlyn.

The larger legend, to which this remark must refer, is lost to us.