De quota litis
Defined in 2 dictionaries — Ballentine's (1916), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
An agreement for a contingent fee.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
In the civll law. A contract by which one who has a claim difficult to recover agrees with another to give a part, for the purpose of obtaining his services to recover the rest. 1 Duval, note 201.