cos, cas
Definitions (by source)
[39, 40], fa ch. 95 32; re c. beside, besides, on side of, 36 30, 38 30, 68 13, 73 20.
Aithdioghluim Dána: A Miscellany of Irish Bardic Poetry, Historical and Religious, including the Historical Poems of the Duanaire in the Yellow Book of Lecan. Vol II, Translations, Notes, Vocabulary. Editor: Lambert McKenna S.J.
[39. 40] sword-hilt; ds. cois 942; re cois beside 967.
Duanaire Mhéig Uidhir: The poembook of Cú Chonnacht Mág Uidhir, Lord of Fermanagh 1566-1589. Editor: David Greene. Translator: David Greene.