Of-fi'ci-āte1, v. i.
(-fish'ē-āt), v. i. [imp. & p. p. OFFICIATED; p. pr. & vb. n. OFFICIATING.] [L. Lat. & It. officiāre, Sp. oficiar, Fr. officier. See OFFICE.]
Sense 1. To act as an officer in his office; to transact the appropriate business of an office or public trust.
The bishops and priests officiate at the altar. Stillingfleet.
Sense 2. To perform the appropriate official duties of another.