kelenn ? (singulative kelennenn)
kelenn
Attested in the Catholicon as Middle Breton quelenn, from Old Breton colaenn, from Proto-Celtic *kolinnos (compare Old Irish cuilenn m (“(wood of the) holly-tree”), Cornish kelyn, Welsh celyn), from Proto-Indo-European *ḱol- (“thorn, thorny plant”) (compare English holly), from *ḱel- (“to cut”).