From Greek 'génesis' (origin), from PIE *ǵenh₁- (to beget) — one of the most productive roots in English, yielding 'gene' through 'nation.'
The origin or coming into being of something; the formation or creation of something.
From Greek 'génesis' (γένεσις, origin, creation, birth, coming into being), from 'gignesthai' (γίγνεσθαι, to be born, to come into being), from the root 'gen-' (to beget, to produce), from PIE *ǵenh₁- (to beget, to give birth). This root is one of the most prolific in all of Indo-European, producing Latin 'genus' (kind, race), 'gēns' (clan, family), 'generāre' (to produce), 'ingenium' (inborn talent, whence 'engine' and 'ingenious'), and 'nāscī' (to be born, from zero-grade *ǵn̥h₁-sḱ-, giving 'nature,' 'nation,' 'native'). Through Germanic
The PIE root *ǵenh₁- (to beget) produced both English 'kin' (through Germanic) and 'genesis' (through Greek), making them distant cousins. The same root also gave us 'nature' and 'nation' (through Latin 'nāscī,' to be born, from the zero-grade *ǵn̥h₁-), and every '-gen' word in chemistry: oxygen ('acid-producer'), hydrogen ('water-producer'), nitrogen ('niter-producer').