'self-advancement' originates from the combination of 'self,' meaning 'one's own person,' and 'advancement,' which comes from Old French 'avancement,' meaning 'progress or promotion.'

'advancement' changed from the Old French word 'avancement' and eventually became the modern English word 'advancement.'

Initially, it meant 'progress or promotion,' but over time it evolved to include the personal aspect of 'self-promotion or improvement.'