mediation vs intermediation

mediation and intermediation both are nouns.

Word	Noun	Adjective	Verb	Adverb
mediation	Yes	No	No	No
intermediation	Yes	No	No	No

As nouns, mediation and intermediation are synonyms defined as:

mediation and intermediation: the act of intervening for the purpose of bringing about a settlement

mediation (noun)	intermediation (noun)
the act of intervening for the purpose of bringing about a settlement	the act of intervening for the purpose of bringing about a settlement
a negotiation to resolve differences that is conducted by some impartial party