A / arcessītor
noun

arcessītor

gen. arcessītōris · gender masculine · decl. 3rd
one that calls; fetches; an accuser
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.