D defs.my
Entry 2 senses · 2 variants Webster, 1913

Officiate

/əf-ĭsh'-ē-ātˌ/ · Of·fi·ci·ate · IPA /əˈfiʃ.i.eɪt/
01 v. i. To act as an officer in performing a duty; to transact the business of an office or public trust; to conduct a public ceremony or service.
imp. & p. p. Officiated; p. pr. & vb. n. Officiating
  1. 1.
    To act as an officer in performing a duty; to transact the business of an office or public trust; to conduct a public ceremony or service.
02 v. t. To discharge, perform, or supply, as an official duty or function.
  1. 1.
    To discharge, perform, or supply, as an official duty or function.[Obs.]
    “Merely to officiate light Round this opacous earth.” Milton.