Ab Actis
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat An officer having charge of acta, public records, registers, journals or minutes; an officer who entered on record the acta or proceedings of a court; a clerk of court; a notary or actuary.
Calvin.
Lex. Jurid. See "Acta." This, and the similarly formed epithets a cancellis, A secretis, A libellis, were also anciently the titles of a chancellor, (cancellarius,) in the early history of that office. Spelman, "Cancellarius."