The story
- Proto-Indo-European*slowgʰos
- Proto-Celtic*slougos
- Old Irishslóg
- Middle Irishslúag
- Scottish Gaelicsluagh
- Proto-Indo-European*ǵeh₂r-
- Proto-Celtic*garsman
- Old Irishgairm
- Scottish Gaelicgairm
- Scottish Gaelicsluagh-ghairm
- Englishsloggorne
- Englishslughorne
- Englishslughorn
- Englishslogan
- English todaysloganeer
From slogan + -eer. US origin (1922), popularized by Franklin D. Roosevelt.
Etymology from Wiktionary, CC BY-SA 4.0.