bargain vs negociate

bargain is a noun but negociate is not a noun.

Word	Noun	Adjective	Verb	Adverb
bargain	Yes	No	Yes	No
negociate	No	No	Yes	No

As verbs, negociate is a hypernym of bargain; that is, negociate is a word with a broader meaning than bargain:

Other hypernyms of bargain include negotiate, talk terms.

bargain (noun)	negociate (noun)
an agreement between parties (usually arrived at after discussion) fixing obligations of each
an advantageous purchase

bargain (verb)	negociate (verb)
come to terms; arrive at an agreement	discuss the terms of an arrangement
negotiate the terms of an exchange	confer with another in order to come to terms or reach an agreement
	succeed in passing through, around, or over
	transfer by endorsement to another in return for value received
	sell or discount
	be successful; achieve a goal