Emily Dickinson Lexicon

CON-SPIR'A-CY, n. [L. conspiratio, from conspiro. See Conspire.]

1. A combination of men for an evil purpose; an agreement between two or more persons, to commit some crime in concert; particularly, a combination to commit treason, or excite sedition or insurrection against the government of a state; a plot; as, a conspiracy against the life of a king; a conspiracy against the government. More than forty had made this conspiracy. – Acts xxiii.
2. In law, an agreement between two or more persons, falsely and maliciously to indict, or procure to be indicted, an innocent person of felony. – Blackstone.
3. A concurrence; a general tendency of two or more causes to one event. – Sidney.