OFFICIATE

officiate, function

(verb) perform duties attached to a particular office or place or function; “His wife officiated as his private secretary”

officiate

(verb) act in an official capacity in a ceremony or religious ritual, such as a wedding; “Who officiated at your wedding?”

Source: WordNet® 3.1

Etymology

Verb

officiate (third-person singular simple present officiates, present participle officiating, simple past and past participle officiated)

(intransitive, transitive) To perform the functions of some office.

(intransitive, transitive, sports) To serve as umpire or referee.

Noun

officiate (plural officiates)

A person appointed to office

Source: Wiktionary

Of*fi"ci*ate, v. i. [imp. & p. p. Officiated; p. pr. & vb. n. Officiating.] Etym: [LL. officiare. See Office.]

Definition: To act as an officer in performing a duty; to transact the business of an office or public trust; to conduct a public service. Bp. Stillingfleet.

Of*fi"ci*ate, v. t.

Definition: To discharge, perform, or supply, as an official duty or function. [Obs.] Merely to officiate light Round this opacous earth. Milton.

Source: Webster’s Unabridged Dictionary 1913 Edition