What does vannesa mean?

The name Vanessa is a name commonly given to females, it was invented by writer Jonathan Swift, for a woman he met in the year 1708 and that was his pupil, Esther Vanhomrigh. He formed the nickname by taking the first part of her last name, 'Van' and combining it with 'Essa', the name of a pet of hers. It's a quite popular name in Germany an the US.