Pro Se
Defined in 3 dictionaries — Cyclopedic (1922), Ballentine's (1916), Black's (1910)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
For himself; in his own behalf; in person.
Ballentine's Law Dictionary
James A. Ballentine · 1916
For himself.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
For himself; in his own behalf ; in person.