severalise vs differentiate

severalise and differentiate both are verbs.

Word	Noun	Adjective	Verb	Adverb
severalise	No	No	Yes	No
differentiate	No	No	Yes	No

As verbs, severalise and differentiate are synonyms defined as:

Other synonyms of severalise include distinguish, secern, secernate, separate, severalize, tell, tell apart.

As verbs, differentiate is a hypernym of severalise; that is, differentiate is a word with a broader meaning than severalise:

Other hypernyms of severalise include distinguish, secern, secernate, separate, severalise, severalize, tell, tell apart.

severalise (verb)	differentiate (verb)
mark as different	become distinct and acquire a different character
distinguish or separate	become different during development
	evolve so as to lead to a new species or develop in a way most suited to the environment
	calculate a derivative; take the derivative
	mark as different
	be a distinctive feature, attribute, or trait; sometimes in a very positive sense