Tantalus vs Greek mythology

Tantalus and Greek mythology both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tantalus	Yes	No	No	No
Greek mythology	Yes	No	No	No

Tantalus (noun)	Greek mythology (noun)
(Greek mythology) a wicked king and son of Zeus; condemned in Hades to stand in water that receded when he tried to drink and beneath fruit that receded when he reached for it	the mythology of the ancient Greeks