'embryonic' originates from Greek, specifically the word 'embryon,' where 'em-' meant 'in' and 'bryein' meant 'to swell.'

'embryon' changed from the Greek word 'embryon' and eventually became the modern English word 'embryonic.'

Initially, it meant 'pertaining to an embryo,' but over time it evolved into its current meaning of 'in an early stage of development.'