Dictionary of Medieval Names
from European Sources

Fergal m. Old Irish fer 'man' + Old Irish gal 'valour, fury, ardor'.

The name of a 7th C king of Connacht, an 8th C king of Osraige, an 8th C high king of Ireland, and a 10th C king of Connacht.

Ireland
Early Modern English
1539/40 Fergall Fiants-1 99
Cite as: S.L. Uckelman. "Fergal". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Fergal.