- an earnest request; entreaty.
- a solemn or desperate urging or counseling: an adjuration for all citizens of the beleaguered city to take shelter.
late 14c., “exorcism,” from Late Latin adjurationem (nominative adjuratio) “a swearing to,” noun of action from past participle stem of adjurare (see adjure). Originally a term in exorcism (with conjuration). General sense is from 17c.