Corinthian vs Greek

Corinthian and Greek both are nouns.

Word	Noun	Adjective	Verb	Adverb
Corinthian	Yes	No	No	No
Greek	Yes	Yes	No	No

As nouns, Greek is a hypernym of Corinthian; that is, Greek is a word with a broader meaning than Corinthian:

Other hypernyms of Corinthian include Hellene.

Corinthian (noun)	Greek (noun)
a resident of Corinth	the Hellenic branch of the Indo-European family of languages
a man devoted to the pursuit of pleasure	a native or inhabitant of Greece

Corinthian (adjective)	Greek (adjective)
	of or relating to or characteristic of Greece or the Greeks or the Greek language