Emily Dickinson Lexicon

CELT'IC, a. [W. celt, a covert or shelter; celtiad, one that dwells in a covert, an inhabitant of the forest, a Celt; celu, to conceal, L. celo; Gr. Κελτοι, Celts.]

Pertaining to the primitive inhabitants of the South and West of Europe, or to the early inhabitants of Italy, Gaul, Spain, and Britain. We say, Celtic nations; Celtic customs; Celtic origin.