From an English surname that was derived from the name of a Norman town Perci, which was itself perhaps derived from a Gaulish given name that was Latinized as Persius. The surname was borne by a noble English family, and it first used as a given name in their honour. A famous bearer was Percy Bysshe Shelley (1792-1822), an English romantic poet whose works include Adonais and Ozymandias. This name can also be used as a short form of Percival.
People with the name Emanual have a deep inner desire to use their abilities in leadership, and to have personal independence. They would rather focus on large, important issues, and delegate the details.