'heavyweight' originates from the combination of 'heavy' and 'weight', where 'heavy' meant 'having great weight' and 'weight' referred to 'a measure of heaviness'.

'heavyweight' evolved from the Old English word 'hefig' meaning 'heavy' and 'wæġ' meaning 'weight', eventually forming the modern English word 'heavyweight'.

Initially, it referred to a measure of weight, but over time it evolved to also mean someone influential or important.