The given name Jerrad is believed to have its origins in the Germanic languages, specifically the Old English and Old Norse tongues. It is a variation of the more common name Gerald, which derived from the Germanic elements "gair" meaning spear and "waldan" meaning to rule or govern. The earliest recorded spelling was Gerold in the 8th century.

In the Middle Ages, the name Gerald and its variants like Jerrad were popular among the nobility and ruling classes across Europe. One of the earliest recorded bearers of a similar name was Geroldus, a Frankish nobleman who served as a courtier under Charlemagne in the late 8th century.

The name Jerrad gained particular prominence in England during the Norman conquest in the 11th century. Several Norman noblemen bore variations of the name, including Geraud of Cornwall, a baron who fought alongside William the Conqueror in the Battle of Hastings in 1066.

In the 13th century, a notable bearer of the name was Jerard of Wales, a Welsh cleric and historian who wrote extensively about the history of his homeland. His work, known as the Cambrian Chronicle, remains an important source for understanding medieval Welsh history.

During the Renaissance period, the name Jerrad appeared in various literary works and historical records. One notable figure was Jerard Winstanley, an English Protestant reformer and writer who lived in the 17th century and advocated for religious tolerance and social reforms.

Other notable bearers of the name Jerrad throughout history include:

1. Jerrad Blocker (1928-2005), an American jazz drummer and percussionist.
2. Jerrad Paisner (born 1979), an American professional wrestler and actor.
3. Jerrad Romero (born 1986), an American mixed martial artist and former collegiate wrestler.
4. Jerrad Roberson (born 1989), an American professional basketball player.
5. Jerrad Lish (born 1981), an American musician and songwriter.

While the name Jerrad has its roots in ancient Germanic languages, it has evolved over centuries and been adopted across various cultures, making it a truly diverse and historically significant moniker.