Eurafrasia vs Old World

Eurafrasia and Old World both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eurafrasia	Yes	No	No	No
Old World	Yes	No	No	No

As nouns, Eurafrasia and Old World are synonyms defined as:

Eurafrasia and Old World: regions of the world such as Africa, Europe and Asia that were known to Europeans before the discovery of the Americas which they called the New World

Other synonyms of Eurafrasia include Afro-Eurasia, Afroeurasia.

Eurafrasia (noun)	Old World (noun)
regions of the world such as Africa, Europe and Asia that were known to Europeans before the discovery of the Americas which they called the New World	regions of the world such as Africa, Europe and Asia that were known to Europeans before the discovery of the Americas which they called the New World