English
haemogenesis
From haemo- + -genesis.
Proto-Indo-European *ǵenh₁- ‘to produce’
Proto-Indo-European *ǵénh₁tis ‘birth, production’
Proto-Hellenic *génetis ‘origin, source’
Ancient Greek γένεσις ‘origin, source, beginning’
Latin genesis ‘generation, nativity’
English genesis
Today it means
noun haematopoiesis
Language periods are conventional ranges, not dates for this word.
Etymograph / haemogenesis