uncharge

uncharge

(ʌnˈtʃɑːdʒ)
vb (tr)
1. to free of a charge, load, or burden; to take a burden from
2. to unload (a vessel)
3. (Law) law to free from a criminal charge; to declare innocent
4. (Firearms, Gunnery, Ordnance & Artillery) to remove the charge from (a gun)