The Collaborative International Dictionary of English v.0.48:
Loose \Loose\, n. 1. Freedom from restraint. [Obs.] --Prior. [1913 Webster] 2. A letting go; discharge. --B. Jonson. [1913 Webster] To give a loose, to give freedom. [1913 Webster] Vent all its griefs, and give a loose to sorrow. --Addison. [1913 Webster]