-genesissuff. Origin; production: abiogenesis.[Latin, from Greek, birth, origin; see gen?- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.-genesis n combining form indicating genesis, development, or generation: biogenesis; parthenogenesis. [New Latin, from Latin: genesis] -genetic, -genic adj combining formCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014gen?e?sis (?d??n ? s?s) n., pl. -ses (-?siz) an origin, creation, or beginning. [1595?1605;