A Jessamy is a person who is generous, talented and kindly. The name itself means wealthy, and this is true, as a Jessamy will always be rich in spirit and personality. Also used by some kids to mean awesome.
Very few people have this name; those who do tend to be highly creative, amuzing Yet extraordinarly fucktarded. which isnt a bad thing, they rock.
The name can be shortened to Jess, The term should not be confused with the Spanish Jess (pronounced hess) which means a woman with low moral standards.