protest vs protestation

protest and protestation both are nouns.

Word	Noun	Adjective	Verb	Adverb
protest	Yes	No	Yes	No
protestation	Yes	No	No	No

As nouns, protest and protestation are synonyms defined as:

protest (noun)	protestation (noun)
the act of protesting; a public (often organized) manifestation of dissent	a strong declaration of protest
a formal and solemn declaration of objection	a formal and solemn declaration of objection
the act of making a strong public expression of disagreement and disapproval

protest (verb)	protestation (verb)
utter words of protest
affirm or avow formally or solemnly
express opposition through action or words