Turkmen language vs Turkoman language

Turkmen language and Turkoman language both are nouns.

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

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

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

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

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