prohibition vs proscription

prohibition and proscription both are nouns.

Word	Noun	Adjective	Verb	Adverb
prohibition	Yes	No	No	No
proscription	Yes	No	No	No

As nouns, prohibition and proscription are synonyms defined as:

Other synonyms of prohibition include ban.

prohibition (noun)	proscription (noun)
the action of prohibiting or inhibiting or forbidding (or an instance thereof)	rejection by means of an act of banishing or proscribing someone
a decree that prohibits something	a decree that prohibits something
refusal to approve or assent to
a law forbidding the sale of alcoholic beverages
the period from 1920 to 1933 when the sale of alcoholic beverages was prohibited in the United States by a constitutional amendment