|n.||1.||The act of imprisoning, or the state of being imprisoned; confinement; restraint.|
His sinews waxen weak and raw
Through long imprisonment and hard constraint.
Every confinement of the person is an imprisonment, whether it be in a common prison, or in a private house, or even by foreibly detaining one in the public streets.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.