A
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Lat. The letter marked on the ballots by which, among the Romans, the people voted against a proposed law. It was the initial letter of the word "antiquo," I am for the old law. Also the letter inscribed on the ballots by which jurors voted to acquit an accused party. It was the initial letter of "absolvo," I acquit. Tayl. Civil Law, 191, 192.