'roentgenogram' originates from German, specifically the word 'Röntgenogramm', where 'Röntgen' referred to Wilhelm Röntgen, the discoverer of X-rays, and 'gramm' meant 'record'.

'Röntgenogramm' transformed into the English word 'roentgenogram' and has been used in medical terminology since the early 20th century.

Initially, it meant 'a record made by X-rays', and this meaning has largely remained the same in modern usage.