In Matthew chapter 26 Caiaphas when questioning Jesus adjured him to declare whether or not he was the son of God.
Mat 26:63 and 64 KJV
But Jesus held his peace. And the high priest answered and said unto him, I adjure thee by the living God, that thou tell us whether thou be the Christ, the Son of God. Jesus saith unto him, Thou hast said: nevertheless I say unto you, Hereafter shall ye see the Son of man sitting on the right hand of power, and coming in the clouds of heaven.
According to Merriam Webster Adjure is defined as:
ADJU'RE, v.t. [L. adjuro, to sweat solemnly, or compel one to swear; from ad and juro, to swear.]
1. To charge, bind or command on oath, or under the penalty of a curse. 2. To charge earnestly and solemnly, on pain of God's wrath. 1. ***I adjure thee by the living God. Mat 26.*** 3. To conjure; to charge, urge or summon with solemnity.
The original Greek word translated adjure was:
ἐξορκίζω exorkizo (ex-or-kid'-zo) v.1. to exact an oath, i.e. conjure [from ἐκ ek (ek) (or ex ex) prep. And ὁρκίζω horkizo (hor-kid'-zo) v.] KJV: adjure