Lewis Short
admĭnistrātor (noun M) : id., lit.
* He that is near to aid, assist, etc., in the care of a thing; hence, a manager, conductor (cf. administro): (imperator est) administrator quidam belli gerendi,Cic. de Or. 1, 48, 210: rerum civitatis,Dig. 3, 4, 10 al.
Charlton T. Lewis, Charles Short, A Latin Dictionary