'well-rounded' originates from the combination of 'well' and 'rounded', where 'well' meant 'in a good or satisfactory way' and 'rounded' meant 'having a smooth, curved shape'.

'well-rounded' evolved from the idea of something being complete or whole, initially used to describe physical shapes and later applied to personal attributes.

Initially, it meant 'having a smooth, curved shape', but over time it evolved into its current meaning of 'having a variety of experiences and abilities'.