The name Jacy is a feminine given name that has its origins in the English language. It is thought to be a variant or diminutive form of the name Jacqueline, which ultimately derives from the French masculine name Jacques, itself derived from the Hebrew name Jacob.

The name Jacob has its roots in the biblical figure of the same name, who was one of the patriarchs of the Israelites. Jacob is a name of ancient Hebrew origin, meaning "supplanter" or "one who follows". The name Jacy, therefore, can be seen as having an indirect connection to this biblical heritage.

One of the earliest recorded instances of the name Jacy can be found in the 16th century, where it was used as a variant spelling of the name Jacey, which was a diminutive form of the name Jane. However, it is unclear whether this early usage of Jacy was directly related to the name's eventual derivation from Jacqueline and Jacob.

Throughout history, there have been several notable individuals who have borne the name Jacy. One such person was Jacy Nittolo (1892-1982), an Italian-American artist and sculptor known for her works depicting women and children. Another was Jacy Reese Anthis (1924-2009), an American social activist and author who advocated for civil rights and women's rights.

In the literary world, Jacy Esmé Alice Belasco (1903-1995) was a British novelist and playwright who wrote under the pen name Jacy Lewis. Her works often explored themes of love, loss, and the human condition.

In more recent times, Jacy Nittolo (born 1945) is an American artist and sculptor, following in the footsteps of her namesake from earlier in the 20th century. Jacy Reese (born 1988) is an American singer and songwriter known for her work in the country music genre.

While the name Jacy may not have a long and storied history dating back to ancient times, it has been a part of the English language for several centuries and has been borne by individuals from various walks of life, including artists, activists, writers, and musicians.