Emily Dickinson Lexicon

CON-JURE', v.t. [L. conjuro, to swear together, to conspire; con and juro, to swear; It. congiurare; Sp. conjurar; Fr. conjurer.]

1. To call on or summon by a sacred name, or in a solemn manner; to implore with solemnity. It seems originally to have signified, to bind by an oath. I conjure you! let him know, / Whate'er was done against him, Cato did it. – Addison.
2. To bind two or more by an oath; to unite in a common design. Hence, intransitively, to conspire. [Not usual.] Milton.