'barogram' originates from Greek, specifically the elements 'baros' and 'gramma', where 'baros' meant 'weight, pressure' and 'gramma' meant 'thing written'.

'barogram' was formed in the 19th century as a scientific coinage combining the prefix 'baro-' (from New Latin and Greek) with the suffix '-gram' and eventually entered modern English as 'barogram'.

Initially, it meant 'a written record of atmospheric pressure', and over time it has retained this primary meaning as the graphical recording of barometric changes.