Turkmen language vs Turcoman language

Turkmen language and Turcoman language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Turkmen language	Yes	No	No	No
Turcoman language	Yes	No	No	No

As nouns, Turkmen language and Turcoman language are synonyms defined as:

Turkmen language and Turcoman language: the Turkic language spoken by the Turkoman

Other synonyms of Turkmen language include Turcoman, Turkmen, Turkoman, Turkoman language.

Turkmen language (noun)	Turcoman language (noun)
the Turkic language spoken by the Turkoman	the Turkic language spoken by the Turkoman