'barometry' originates from French, specifically the word 'barométrie', where 'baro-' meant 'weight' and '-metry' meant 'measure'.

'barometry' changed from French word 'barométrie' (via scientific Latin 'barometria') and eventually became the modern English word 'barometry'; the element 'baro-' comes from Greek 'baros' and '-metry' from Greek 'metron'.

Initially, it referred broadly to the measurement concept 'measure of weight or pressure', but over time it evolved into the specific meaning 'measurement of atmospheric pressure'.