Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.
Celt, Kelt = Κέλτης
Celts, Kelts = Κελτοί, οἱ.
Celtic, Keltic, adj.: Κελτικός.