Deputize (verb)

1. To appoint or authorize a person to act as a deputy or substitute for another.
2. To give someone the authority to act as a deputy or representative of another person or organization.

Origin:

From the french word députer, meaning "to send as a representative" and the -ize suffix.

Examples:

1. He was deputized to act as a representative of the company at the meeting.
2. The sheriff deputized a group of citizens to help maintain order during the event.
3. He was deputized by the governor to take charge of the investigation.
4. The manager deputized one of her employees to take charge of the project during her absence.
5. The mayor deputized the police chief to take charge of the situation.