renegociate vs negotiate

renegociate and negotiate both are verbs.

Word	Noun	Adjective	Verb	Adverb
renegociate	No	No	Yes	No
negotiate	No	No	Yes	No

As verbs, negotiate is a hypernym of renegociate; that is, negotiate is a word with a broader meaning than renegociate:

renegociate: revise the terms of in order to limit or regain excess profits gained by the contractor
negotiate: discuss the terms of an arrangement

Other hypernyms of renegociate include negociate, talk terms.

renegociate (verb)	negotiate (verb)
revise the terms of in order to limit or regain excess profits gained by the contractor	discuss the terms of an arrangement
negociate anew	succeed in passing through, around, or over