Dravidic vs Dravidian

Dravidic and Dravidian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dravidic	Yes	No	No	No
Dravidian	Yes	No	No	No

As nouns, Dravidic and Dravidian are synonyms defined as:

Dravidic and Dravidian: a large family of languages spoken in south and central India and Sri Lanka, as well as overseas in Malaysia and Singapore

Other synonyms of Dravidic include Dravidian language.

Dravidic (noun)	Dravidian (noun)
a large family of languages spoken in south and central India and Sri Lanka, as well as overseas in Malaysia and Singapore	a large family of languages spoken in south and central India and Sri Lanka, as well as overseas in Malaysia and Singapore
	a member of one of the aboriginal inhabitants of India