A slogan began as a rallying cry. Gaelic sluagh-ghairm combined an army or host with a shout. Its use broadened from the cry of a fighting group to the memorable words that identify a cause, organization, or product.
Sources
- Merriam-Webster · slogan
Dictionary word history; the component and historical references below supply additional detail.
- Online Etymology Dictionary · slogan
Historical forms, meanings, and context for the route described here.