Initial v gives f in Goidelic in the course of the 7th century, whereas in Brythonic it appears as gu, gw, cf. Lat.
There is nothing corresponding to this consonantal mutation in Goidelic.
The names of some of them occur in one source in a Goidelic, in another in a Brythonic form.
In modern phrase, the Goidelic, not the Brythonic branch of the Celtic race.
The Goidelic dialects have preserved the vowels of accented syllables on the whole better than Brythonic.
No absence of Goidelic elements in British place-names is proof against such positive evidence.
The language of the Ogam inscriptions is the oldest form of Goidelic with which we are acquainted.
On account of this Goidelic element, it has been claimed that the personages of the Mabinogion are purely Goidelic.
In Goidelic, we find two mutations, the vocalic and the nasal.
The chief features which distinguish the Brythonic from the Goidelic dialects have already been enumerated.
"pertaining to the branch of Celtic languages that includes Irish, Gaelic, and Manx," 1882, coined by Sir John Rhys (and first used in his "Celtic Britain"), from Old Irish Goidel "Gael" (see Gael).