Gàidheal

See also: Gaidheal

Scottish Gaelic

From Old Irish Goídel (“Irishman”), from Proto-Brythonic *guɨðel (the ancestor of Welsh gwyddel (“raider”)), from Proto-Celtic *weidelos (“savage, woodsman”), related to Scottish Gaelic fiadh (“deer”) through native Goidelic development, from *weidus (“wild”), from Proto-Indo-European *h₁weydʰh₁- (“wood, wilderness”) (compare Old English wāþ (“hunt”)).^[1]

Gàidheal m (genitive singular Gàidheil, plural Gàidheil)

Scottish Gaelic mutation
Radical	Lenition
Gàidheal	Ghàidheal
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

^ Matasović, Ranko (2009) Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN, page 408