Webster's Revised Unabridged Dictionary · 1913

Adjure

Adjure ({not transcribed}) , transitive verb

[Latin adjurare, adjurdium, to swear to; later, to adjure: compare French adjurer. See Jury.]

To charge, bind, or command, solemnly, as if under oath, or under the penalty of a curse; to appeal to in the most solemn or impressive manner; to entreat earnestly.
Joshua adjured them at that time, saying, Cursed be the man before the Lord, that riseth up and buildeth this city Jericho. — Josh. vi. 26
The high priest... said... I adjure thee by the living God, that thou tell us whether thou be the Christ. — Matt. xxvi. 63
The commissioners adjured them not to let pass so favorable an opportunity of securing their liberties. — Marshall