'nerve-free' originates from the combination of 'nerve,' meaning 'courage or boldness,' and 'free,' meaning 'without.'

The term 'nerve-free' evolved from the concept of being 'free from nerves,' where 'nerves' referred to feelings of anxiety or stress.

Initially, it meant 'without physical nerves,' but over time it evolved into its current meaning of 'without anxiety or nervousness.'