What is the meaning of the word "gaelic"?

The Gaelic languages have played a significant role in shaping the cultural identity and heritage of the regions where they are spoken, and they continue to be valued as important symbols of national and cultural identity.

Definitions:

Refers to a group of languages spoken primarily in Ireland, Scotland, and the Isle of Man. ADJECTIVE
- She decided to enroll in a Gaelic language course to reconnect with her Irish roots.
Refers to the Celtic language, including the speech of ancient Ireland and the dialects that have developed from it, especially those known as Irish, Manx, and Scots Gaelic. NOUN
- In 1901 the Isle of Man had 5,000 Gaelic speakers.
- Manx Gaelic is an official language in the parliament of the Isle of Man.
Refers to the Celtic people of Ireland, Scotland, or the Isle of Man, or their language or customs. ADJECTIVE
- The number of persons speaking Gaelic was recorded for the first time in 1881.
Relating to the Gaels, especially the Celtic Highlanders of Scotland, or the Goidelic speech of the Celts in Ireland, the Isle of Man, and the Scottish Highlands. ADJECTIVE
- Scotland's Gaelic culture was crushed after the battle of Culloden
Term often used in reference to the Irish language and the Scottish Gaelic language which are closely related and share common linguistic and cultural heritage. ADJECTIVE
- Learning Scottish Gaelic has deepened my appreciation for the culture and history of the Highlands.