OFFICIATING
umpirage, officiation, officiating, refereeing
(noun) the act of umpiring; “the officiating was excellent”
Source: WordNet® 3.1
Verb
officiating
present participle of officiate.
The referee liked officiating because of the great view, but hated making the hard calls.
Source: Wiktionary
OFFICIATE
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