negociate vs parley

negociate is not a noun while parley is a noun.

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

As verbs, parley is a hyponym of negociate; that is, parley is a word with a more specific, narrower meaning than negociate:

negociate: confer with another in order to come to terms or reach an agreement
parley: discuss, as between enemies

Other hyponyms of negociate include renegociate, renegotiate, treat, horse-trade.

negociate (noun)	parley (noun)
	a negotiation between enemies

negociate (verb)	parley (verb)
discuss the terms of an arrangement	discuss, as between enemies
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