Celtic artwork feature (4)
I believe the answer is:
knot
(Other definitions for knot that I've seen before include "Shorebird's" , "Ravel" , "Bird; speed; tie" , "puzzle" , "Rope fastening" .)
I believe the answer is:
knot
(Other definitions for knot that I've seen before include "Shorebird's" , "Ravel" , "Bird; speed; tie" , "puzzle" , "Rope fastening" .)