racialism vs favouritism

racialism and favouritism both are nouns.

Word	Noun	Adjective	Verb	Adverb
racialism	Yes	No	No	No
favouritism	Yes	No	No	No

As nouns, favouritism is a hypernym of racialism; that is, favouritism is a word with a broader meaning than racialism:

racialism: discriminatory or abusive behavior towards members of another race
favouritism: unfair treatment of a person or group on the basis of prejudice

Other hypernyms of racialism include discrimination, favoritism.

racialism (noun)	favouritism (noun)
discriminatory or abusive behavior towards members of another race	unfair treatment of a person or group on the basis of prejudice
	an inclination to favor some person or group