What is Onerous Title?

Legal Definition
In the civil law, title to property acquired by the giving of a valuable consideration for it, such as the payment of money, the rendition of services, the performance of conditions, the assumption of obligations, or the discharge of liens on the property; opposed to "lucrative" title, or one acquired by gift or otherwise without the giving of an equivalent See Scott v. Ward, 13 Cal. 471; Kircher v. Murray (C. Ct) 54 Fed. 624; Yates v. Houston. 3 Tex. 453; Rev. Civ. Code La. 1900, art. 3556, subd. 22.
-- Black's Law Dictionary
Legal Definition
A title acquired by the giving of a valuable consideration, as the payment of money or rendition of services or the performance of conditions or assumption or discharge of liens or cbarges. Scott v. Ward, 13 Cal. 458; Kircher v. Murray (G. C.) 54 Fed. 617; Noe v Card, 14 Cal. 576; Civ. Co.de La-1900, art. 3556.
-- Black's Law Dictionary
Legal Definition
That by which we acquire anything, paying its value in money, or in any other thing, or in services, or by means of certain charges and conditions to which we are subjected. See 96 Am. St. Rep. 910, note.
-- Ballentine's Law Dictionary