gen·e·sis \ˈjenəsə̇s\noun (pluralgene·ses \-əˌsēz\) Etymology: Latin, from Greek, from the stem of gignesthai to be born — more at kin : the origin or coming into being of anything : development into being especially by growth or evolution : the process or mode of origin < the genesis of a book > < the genesis of a culture pattern > < the genesis of a disease >