Gennesiss \ge-nnesi-ss, genn(e)-siss\ as a girl's name is a variant of Genesis (Hebrew), and the meaning of Gennesiss is "origin, birth".

The baby name Gennesiss sounds like Gennesis and Genesiss. Other similar baby names are Genesies, Jennasis, Jenesyss, Jenesis, Genisis, Genessa and Jennessa.