Goidelic vs Erse

Goidelic and Erse both are nouns.

Word	Noun	Adjective	Verb	Adverb
Goidelic	Yes	No	No	No
Erse	Yes	No	No	No

As nouns, Goidelic and Erse are synonyms defined as:

Goidelic and Erse: any of several related languages of the Celts in Ireland and Scotland

Other synonyms of Goidelic include Erse language, Gaelic, Gaelic language, Goidelic language.

Goidelic (noun)	Erse (noun)
any of several related languages of the Celts in Ireland and Scotland	any of several related languages of the Celts in Ireland and Scotland