Etymology of the French word conspiration
the French word conspiration
derived from the Latin word conspiratio (concord, harmony, unanimity; illegal, hostile combination, conspiracy)
derived from the Latin word conspiratus (having conspired, agreed, having entered into a conspiracy; sounding together; agreement; harmony)
derived from the Latin word conspirare (coil up; plot, conspire, unite)
using the Latin prefix con- (together)
derived from the Medieval Latin word spirare (breathe; blow; live)