'self-motivated' originates from the combination of 'self' and 'motivated,' where 'self' refers to one's own person and 'motivated' comes from the Latin 'motivus,' meaning 'causing motion.'

'motivated' changed from the Latin word 'motivus' and eventually became the modern English word 'motivated.'

Initially, it meant 'causing motion,' but over time it evolved into its current meaning of 'driven by one's own desires.'