Verb

To make a judgment (on a dispute) as an arbitrator or arbiter

to arbitrate a disputed case

* Shakespeare

There shall your swords and lances arbitrate / The swelling difference of your settled hate.

To submit (a dispute) to such judgment

(mathematics, rare) To assign an object an arbitrary value, or otherwise arbitrarily determine it

We wish to show f is continuous. Arbitrate epsilon greater than zero...

Verb

(negotiat)

To confer with others in order to come to terms or reach an agreement.

* 1963 , , to the eight fellow clergymen who opposed the civil rights action, "Letter from Birmingham Jail," Why We Can't Wait

"You are quite right in calling for negotiation. Indeed, this is the very purpose of direct action. Nonviolent direct action seeks to create such a crisis and foster such a tension that a community which has constantly refused to negotiate is forced to confront the issue."

To arrange or settle something by mutual agreement.

* {{quote-magazine, date=2013-07-19, author=(Timothy Garton Ash)

, volume=189, issue=6, page=18, magazine=(The Guardian Weekly) , title= Where Dr Pangloss meets Machiavelli , passage=Hidden behind thickets of acronyms and gorse bushes of detail, a new great game is under way across the globe.

To succeed in coping with, or getting over something.

* {{quote-news, year=2012, date=June 29, author=Kevin Mitchell, work=the Guardian

, title= Roger Federer back from Wimbledon 2012 brink to beat Julien Benneteau , passage=Novak Djokovic earlier had negotiated his own tricky passage through the fifth day.}}

(obsolete) To transact business; to carry on trade.

(Hammond)

(obsolete) To intrigue; to scheme.

(Francis Bacon)