Erse vs Goidelic

Erse and Goidelic both are nouns.

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

As nouns, Erse and Goidelic are synonyms defined as:

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

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

Erse (noun)	Goidelic (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