A diminutive of Jocelyn or Joss, used as a playful affectionate short form.
Jossy is an affectionate diminutive most naturally associated with Jocelyn and Josephine, two names with very different etymological histories that have nonetheless traveled through similar social arcs. Jocelyn derives from the Germanic Gautzelin, a diminutive of Gaut — the name of a Germanic tribe and possibly a byname for the god Odin, who was sometimes called the Gaut. It arrived in England with the Normans after 1066, where it was used as a masculine name for several centuries before gradually transitioning to feminine use by the 20th century, a pattern shared by names like Evelyn and Vivian.
Josephine, meanwhile, is the French feminine form of Joseph, from the Hebrew Yosef, meaning "God will add" or "God will increase" — a name of hope and abundance. Jossy as a standalone nickname has a particular warmth and informality, belonging to the tradition of -sy/-sie diminutives like Daisy, Betsy, and Missy that have long been favorites in British and American naming culture. It was used as a standalone name in 19th-century England and appears in Victorian parish records, and it carries that era's fondness for cheerful, unpretentious short forms.
In contemporary usage, Jossy offers a playful alternative for parents who love Jocelyn or Josie but want something less expected. It has appeared in fiction and television, lending characters a sense of plucky good humor. The name feels equally at home in a Jane Austen novel and a modern schoolroom — ageless in the way that only truly simple names can be.