unburdenment

At length, all that was in John's heart had been made plain, and exhausted with the effort of his innermost being's unburdenment, he sank back in his chair, deadly pale.

The Price of Things Elinor Glyn 1903

Never since he came to Manchester had he fallen into such a moment of unburdenment, of intimacy, or something like it, with any human being.

The History of David Grieve Humphry Ward 1885

She took up a handful of sand, and threw it, angrily, from her thin fingers, hurrying on, however, as if the unburdenment, once begun, must have its course.

Helbeck of Bannisdale — Volume I Humphry Ward 1885