Onus probandi,

Definition of Onus probandi:

1. The obligation to prove an assertion or allegation that one makes; the burden of proof.

2. Latin for, burden of proof.

How to use Onus probandi in a sentence?

1. [The first [is], that the onus probandi lies in every case upon the party propounding a Will; and he must satisfy the conscience of the Court that the instrument so propounded is the last Will of a free and capable Testator.