Cassady is a variant of the name Cassius, which is derived from the Latin word cassius, meaning to bind or to tie. The name Cassady is believed to have originated as a nickname for someone named Cassius, possibly due to the resemblance between the two names. Over time, the name Cassady has become a popular given name for both boys and girls, symbolizing strength and determination. In modern times, the name Cassady has gained recognition due to its unique and exotic sound, making it a popular choice for parents looking for a distinctive name. The name Cassady has also been associated with several notable individuals throughout history, including the 17th-century English nobleman, Sir Thomas Cassady. Despite its origins in ancient times, the name Cassady has remained relatively unchanged, with its modern usage continuing to reflect its strength and determination.