Patrick Weston Joyce

Clonmacnoise; written in Irish documents of the eighth century Cluain-maccu-Nois, which was the old pagan name; and it signifies the meadow of the sons of Nos. This Nos was the son of Fiadhach [Feeagh], a chief of the tribe of Dealbhna or Delvin, in whose territory Clonmacnoise was situated.