mediate vs arbitrate

mediate is an adjective but arbitrate is not an adjective.

Word	Noun	Adjective	Verb	Adverb
mediate	No	Yes	Yes	No
arbitrate	No	No	Yes	No

As verbs, mediate and arbitrate are synonyms defined as:

mediate and arbitrate: act between parties with a view to reconciling differences

Other synonyms of mediate include intercede, intermediate, liaise.

mediate (adjective)	arbitrate (adjective)
acting through or dependent on an intervening agency
being neither at the beginning nor at the end in a series

mediate (verb)	arbitrate (verb)
act between parties with a view to reconciling differences	act between parties with a view to reconciling differences
occupy an intermediate or middle position or form a connecting link or stage between two others