'libertad' originates from Latin, specifically the word 'libertas', where 'liber' meant 'free' and the suffix '-tas' indicated a state or condition.

'libertad' changed from the Latin word 'libertas' into Old Spanish forms like 'libertat' and eventually became the modern Spanish word 'libertad'.

Initially, it meant 'the state of being free' in Latin, and over time it retained that central meaning while extending to political and civil rights in modern usage.