'world-renowned' originates from the combination of 'world' and 'renowned', where 'world' refers to the earth and its inhabitants, and 'renowned' means 'famous or celebrated'.

'renowned' changed from the Old French word 'renomer', which meant 'to name again or repeatedly', and eventually became the modern English word 'renowned'.

Initially, 'renowned' meant 'to name repeatedly', but over time it evolved into its current meaning of 'famous or celebrated'.