officiate

Circa 17th century, from Medieval Latin officiātus, perfect passive participle of officiō (“conduct or perform religious services”), from Latin officium (“official duty, service”).

• IPA^(key): /əˈfiʃ.i.eɪt/

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

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

   She officiated as registrar at the wedding.

   She officiated the wedding as registrar.

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

   This is the second time he has officiated at a cup-final.

   He's never officiated a cup-final before.

• office
• officer
• official

officiate (plural officiates)

1. A person appointed to office

officiate

1. second-person plural present indicative of officiare
2. second-person plural imperative of officiare
3. second-person plural present subjunctive of officiare
4. feminine plural of officiato