Lewis Short
arcessītor (noun M) : id.
* One that calls or fetches another (perh. only in the two foll. exs.): nemo arcessitor ex proximo,Plin. Ep. 5, 6, 45.—Hence, in judic. lang., an accuser, Amm. 29, 1, 44.
Charlton T. Lewis, Charles Short, A Latin Dictionary