The story
- Cumbric · derived from*cein“ridge”
- Cumbric · derived from*cant“rim, border”
- Cumbric · derived from*cann“bright”
- English todayTantallon
The first part of the name is Cumbric *dyn (“fort”) + *tal (“brow”). Specific element may be either Cumbric *cann (“bright”), Cumbric *cant (“rim, border”) or Cumbric *cein (“ridge”).
Etymology from Wiktionary, CC BY-SA 4.0.