From Ancient Greek πάνδημος (pándēmos, “of or belonging to all the people, public”) + English -ic (suffix forming adjectives from nouns with the sense ‘of or pe

From Ancient Greek πάνδημος (pándēmos, “of or belonging to all the people, public”) + English -ic (suffix forming adjectives from nouns with the sense ‘of or pertaining to’). πάνδημος is derived from παν- (pan-, prefix meaning ‘all, every’) (ultimately from Proto-Indo-European peh₂- (“to protect, shepherd”)) + δῆμος (dêmos, “the common people; free citizens, sovereign people”) (ultimately from Proto-Indo-European deh₂- (“to divide, share”)).