Spencer is an English surname and given name of Norman origin, derived from the Middle English 'Speisbrid', which means 'steward'. It was initially used as a surname for someone who served as a steward or manager of an estate. The name Spencer gained prominence in the 14th century when Sir Robert Spencer rose to political prominence during the reign of King Edward III. Today, Spencer is often associated with the Spencer family, a prominent branch of which includes Princess Diana's family, further boosting its popularity as a given name.
Spencil has been an uncommon name throughout history, with only five individuals named Spencil being born in the year 1923.