'birth' originates from Old English, specifically the word 'gebyrd', where 'ge-' meant 'together' and 'byrd' meant 'bearing or bringing forth'.

'gebyrd' transformed into the Middle English word 'birthe', and eventually became the modern English word 'birth'.

Initially, it meant 'bearing or bringing forth', but over time it evolved into its current meaning of 'the emergence of a baby from the body of its mother'.