From jessamine, an old form of jasmine, the flower name ultimately from Persian.
Jessamy is an heirloom name with the scent of gardens in it — a variant of Jasmine that traveled into English through French (jasmin) from Persian yasmin, itself the name for the flowering vine whose white blossoms were prized in Persia for their heady perfume. Where Jasmine became commonplace, Jessamy preserved an older, more literary sensibility: it has the feel of a name found pressed inside a Victorian novel or whispered in a Shakespeare-era comedy. Its slightly archaic quality is precisely its charm.
The name gained particular fictional resonance through Barbara Sleigh's 1967 children's novel Jessamy, in which a young girl travels back in time to the Edwardian period — a story that perfectly suits the name's quality of existing slightly out of its own era. In English folk tradition, the -amy suffix carries warmth and femininity, aligning Jessamy with names like Rosemary, and Bellamy while maintaining its floral botanical core. Some etymological traditions also connect the name through French regional variations to the Hebrew Jesse, meaning "gift" — a possible secondary thread of meaning beneath the botanical one.
Jessamy never fell into the kind of mass popularity that strips a name of personality. It remained in quiet circulation among families who prized the unusual and the literary, surfacing most often in Britain and in anglophile American communities. In the contemporary naming landscape, where parents are digging into historical registers and literary archives to find names both authentic and original, Jessamy has begun attracting renewed attention. It sounds romantic without being frilly, unusual without being invented — the kind of name a daughter might grow into with genuine pride.