negociate vs dicker

negociate and dicker both are verbs.

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

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

Other hyponyms of negociate include arbitrate, intercede, intermediate, liaise, mediate, renegociate, renegotiate, bargain, broker.

negociate (verb)	dicker (verb)
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