Used when someone is given your responsibilities, often officially or formally. While I was on vacation, I deputed the intern to handle my emails.
Pro Tip 2/3
Authority Transfer
Implies transferring not just tasks, but also the authority to make decisions. She was deputed the authority to sign contracts on behalf of the company.
Pro Tip 3/3
Temporarily Assigned
Often indicates a temporary assignment, not a permanent change in roles. He was deputed to lead the project during the manager's medical leave.