begging the question
Definition - The fallacy of proving something by using a premiss that is itself in as much need of proof as the conclusion.

1. The term is often used to mean "evading the question" — i.e. not giving the required answer. Many prescriptivists think that using the term to meani this is a solecism.

Example -
Democracy is the best form of government because the majority is always right.

Oxford English Dictionary -
The term's first citation is from 1887:
"The argument in a circle is the most important case of the fallacy called Petitio Principii (or, as it is more properly called, Petitio Quæsiti, begging the question)."
(Fowler Deduct. Logic (ed. 9) viii. 145 )

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