late 14c., "act of making public," also "that which is proclaimed;" from Old French proclamacion (14c., Modern French proclamation) and directly from Latin proclamationem (nominative proclamatio), noun of action from past-participle stem of proclamare (see proclaim).
procession
processional
processor
pro-choice
proclaim
proclamation
proclitic
proclivity
proconsul
procrastinate
procrastination