From Old French 'aprentis' meaning apprentice or learner.
Prentiss began its life not in a christening font but in a workshop. It derives from the Middle English and Old French *aprentis*, meaning 'apprentice' — someone bound to a master craftsman to learn a trade. The word entered English after the Norman Conquest along with much of the vocabulary of skilled labor and guild organization.
Prentiss as a surname identified families with an apprentice somewhere in their lineage, and like many occupational surnames it eventually crossed into use as a given name, particularly in the American South and border states where surname-to-forename transfer was a well-established naming tradition. The name is associated with Sergeant S. Prentiss, the legendary Mississippi orator and lawyer of the antebellum period, who was celebrated across the South as one of the most brilliant courtroom speakers of his generation.
That association lent Prentiss a certain regional prestige, and it appeared with some regularity as a masculine given name in Southern families throughout the nineteenth and early twentieth centuries. Less commonly, it was also given to girls — most notably Henrietta 'Hettie' Prentiss, and in literary fiction where the name signaled independence and an unconventional spirit. Prentiss carries a wonderful occupational irony for a given name: it literally means a learner, someone at the beginning of mastery, which gives it an almost philosophical humility. In the twenty-first century it has attracted renewed attention from parents seeking surnames-as-first-names with genuine historical roots rather than invented ones — and Prentiss delivers exactly that, with a distinctive rhythm and a story that opens onto guild halls and courtrooms alike.