The name Amaury has its origins in the Old German language and is derived from the words "amal" meaning "work" and "ric" meaning "power" or "ruler". It is believed to have emerged as a given name during the Medieval period in Europe, particularly in regions where Germanic influence was strong, such as France and Germany.

One of the earliest recorded instances of the name Amaury can be found in the 12th century, when Amaury de Montfort (1195-1241) was a prominent French nobleman and military leader during the Albigensian Crusade against the Cathar heretics in southern France. He was known for his ruthless tactics and the brutal siege of the city of Béziers in 1209.

Another notable figure bearing the name Amaury was Amaury de Bène (1268-1337), a French theologian and philosopher who taught at the University of Paris. He was known for his controversial views on the nature of the soul and was accused of heresy by the Catholic Church.

In the 16th century, Amaury Bouchard (1535-1598) was a French Protestant nobleman and military leader who fought for the Huguenot cause during the French Wars of Religion. He was known for his bravery and skill on the battlefield.

The name Amaury also appears in religious texts, such as the Old French epic poem "La Chanson de Roland" (The Song of Roland), which dates back to the 11th century. In the poem, Amaury is mentioned as one of the knights in the army of Charlemagne.

Another noteworthy individual with the name Amaury was Amaury de la Porte (1557-1617), a French Catholic priest and mathematician who made significant contributions to the field of trigonometry and is credited with introducing the use of the term "sinusoid" in mathematics.

While the name Amaury has its roots in the Medieval period and was primarily used in French and German-speaking regions, it has since spread to other parts of the world, though it remains relatively uncommon in many countries today.