absolve
/əbˈzɒlv अब्ˈज़ॉल्व़्/ verb [T] absolve somebody (from/of something) to say formally that somebody does not have to take responsibility for something अपराध, पाप, उत्तरदायित्व आदि से मुक्त करना; दोषमुक्त करना, निरपराध ठहरना
The driver was absolved of any blame for the train crash.