'heavyset' originates from the combination of 'heavy' and 'set', where 'heavy' meant 'having great weight' and 'set' referred to 'a fixed or established form'.

'heavyset' evolved from the combination of the words 'heavy' and 'set' in English, maintaining its meaning related to physical build.

Initially, it meant 'having a solid or sturdy build', and this meaning has largely remained the same in modern usage.