The surname Sellick has its origins in England, dating back to the 13th century. It is derived from the Old English word "sellic," which means "strange," "wonderful," or "marvelous." This suggests that the name may have been given as a nickname to someone with an unusual or remarkable personality or appearance.

One of the earliest recorded instances of the name Sellick can be found in the Hundred Rolls of Oxfordshire from 1273, where it appears as "Sellic." This document was a survey of landholders commissioned by King Edward I, providing valuable insights into the distribution of surnames across medieval England.

In the 14th century, the name evolved into various spellings, such as "Sellyck," "Sellik," and "Sellick." These variations likely emerged due to regional dialects and the inconsistencies in spelling practices during that time.

The Sellick surname is also closely associated with the village of Sellick Combe in Somerset, England. This place name, recorded as early as the 11th century in the Domesday Book, is believed to have contributed to the establishment of the Sellick surname in the region.

One notable figure bearing the Sellick name was John Sellick (c. 1595-1671), an English clergyman and author who served as the Rector of Combe Monkton in Somerset. His work, "A Guide to Eternal Glory," published in 1659, was a popular religious treatise of its time.

Another individual of historical significance was William Sellick (1737-1801), a British military officer who served in the American Revolutionary War. He rose to the rank of Lieutenant-Colonel and was commended for his bravery and leadership during the Battle of Brandywine in 1777.

In the 19th century, Sellick Osborn (1834-1917) was a prominent engineer and inventor from England. He is credited with developing several innovative agricultural machines, including a reaping machine and a hay-making machine, which revolutionized farming practices of the time.

James Sellick (1868-1939), born in Warwickshire, England, was a notable artist and illustrator. He gained recognition for his commissioned works, including illustrations for popular magazines and books, as well as portraits of notable figures.

Finally, Maureen Sellick (1937-2010), an English actress and writer, had a successful career in television and theater. She is best known for her roles in popular British television series such as "The Pallisers" and "Coronation Street."