Per annum
Defined in 3 dictionaries — Ballentine's (1916), Bouvier (1914), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
By or for a year.
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
Strictly speaking, by the year or through the year. Ramsdell v. Hulett, 50 Kan. 440, 31 Pac. 1092.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Lat. By the year. A phrase still in common use. Ramsdell v. Hulett, 50 Kan. 440, 31 Pac. 1092; State v. McFetridge, 64 Wis. 130, 24 N. W. 140; Haney v. Caldwell, 35 Ark. 168.