Question

what is Liberty in French Revolution​

Answer 1

It reappeared during the Revolution of 1848 marked with a religious dimension: priests celebrated the "Christ-Fraternité" and blessed the trees of liberty that were planted at the time. When the Constitution of 1848 was drafted, the motto "Liberty, Equality, Fraternity" was defined as a "principle" of the Republic.

Answer 2

Liberty is derived from Latin word liber which means "free"..
Ideas of liberty
Social ideas- freedom of individual, equality before law
Political ideas- govt. by consent
Economic ideas- freedom of movement of goods etc..