inaugurator

transitive verb inaugurated, inaugurating

1. to induct (an official) into office with a formal ceremony
2. to make a formal beginning of; start: to inaugurate a new policy
3. to celebrate formally the first public use of; dedicate: to inaugurate a new library

Origin: < L inauguratus, pp. of inaugurare, to practice augury; to consecrate (a person in office) by augury: see in- & augur