overspecialize vs specialise

overspecialize and specialise both are verbs.

Word	Noun	Adjective	Verb	Adverb
overspecialize	No	No	Yes	No
specialise	No	No	Yes	No

As verbs, specialise is a hypernym of overspecialize; that is, specialise is a word with a broader meaning than overspecialize:

Other hypernyms of overspecialize include narrow, narrow down, specialize.

overspecialize (verb)	specialise (verb)
become overly specialized	become more focused on an area of activity or field of study
	suit to a special purpose
	evolve so as to lead to a new species or develop in a way most suited to the environment
	be specific about
	devote oneself to a special area of work