English

embryogenetic

From embryo + genetic.

Ancient Greek ἔμβρυον ‘fetus’

Medieval Latin embryō

Proto-Indo-European *ǵenh₁- ‘to beget’

…

Proto-Hellenic *gígnomai

Ancient Greek γίγνομαι ‘I come into being’

Ancient Greek γένεσις ‘origin, source’

English genesis

Today it means

adj Relating to embryogenesis.

Language periods are conventional ranges, not dates for this word.

Etymograph / embryogenetic