What is Begging The Question?

Legal Definition
To beg a question means to assume the conclusion of an argument—a type of circular reasoning. This is an informal fallacy, in which an arguer includes the conclusion to be proven within a premise of the argument, often in an indirect way such that its presence within the premise is hidden or at least not easily apparent. The term "begging the question", as this is usually phrased, originated in the 16th century as a mistranslation of the Latin petitio principii, which actually translates as "assuming the initial point". In modern vernacular usage, "to beg the question" is frequently[citation needed] used to mean "to invite the question" (as in "This begs the question of whether...") or "to dodge a question". Some consider these usages incorrect in contexts that demand strict adherence to the technical definition.
-- Wikipedia
Legal Definition
To beg a question means to assume the conclusion of an argument—a type of circular reasoning. This is an informal fallacy, in which an arguer includes the conclusion to be proven within a premise of the argument, often in an indirect way such that its presence within the premise is hidden or at least not easily apparent.

The term "begging the question", as this is usually phrased, originated in the 16th century as a mistranslation of the Latin petitio principii, which actually translates as "assuming the initial point". In modern vernacular usage, "to beg the question" is frequently used to mean "to invite the question" (as in "This begs the question of whether...") or "to dodge a question". Some consider these usages incorrect in contexts that demand strict adherence to the technical definition.
-- Wikipedia
Legal Definition
This term applies to the argument that will assume that the question that is at issue has already been proved.