From Middle English Carlele, from Old English Carleol, Carleul, from Old Welsh Caer Lualid, Caer Ligualid, from Proto-Brythonic *kair (“fort”) + Latin Luguvalium, from Proto-Celtic *Luguwalos (personal name, literally “strength of Lugus”), from *Lugus + *walos (“stength”), from Proto-Indo-European *h₂welh₁-.
- Homophone: Carlyle
- A city in north-western England, the county town of Cumbria and formerly of Cumberland.
- A home-rule class city in Kentucky, USA, and the county seat of Nicholas County.
- A borough in Pennsylvania, USA, and county seat of Cumberland County.
- A habitational surname.