Pro Solido
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 the whole; as one; jointly; without division. Dig. 50. 17. 141. 1. PRO TANTO (Lat.) For so much. See 17 Serg, & R. (Pa.) 400.
Ballentine's Law Dictionary
James A. Ballentine · 1916
As a bulk.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
For the whole; as one; jointly; without division. Dig. 50, 17, 141,1.