DELEGATE

noun

1. A person authorized to act as representative for another; a deputy
2. A representative at a conference, etc.
3. An appointed representative in some legislative bodies

verb

1. To authorize someone to be a delegate
2. To commit a task to someone, especially a subordinate
3. (of a subdomain) to give away authority over a subdomain; to allow someone else to create sub-subdomains of a subdomain of one's own