Adjuration

n.	1.	The act of adjuring; a solemn charging on oath, or under the penalty of a curse; an earnest appeal. What an accusation could not effect, an adjuration shall. - Bp. Hall.
	2.	The form of oath or appeal. Persons who . . . made use of prayer and adjurations. - Addison.

Noun

1.

adjuration - a solemn and earnest appeal to someone to do something

ADJURATION. The act by which one person solemnly charges another to tell or swear to the truth. Wolff. Inst. Sec. 374.

adjure, appeal, beseech, bid, conjure, entreat, entreaty, prayer, press