'paradise' originates from Old French, specifically the word 'paradis', where that term in turn comes from Late Latin 'paradisus' and Greek 'paradeisos', ultimately from an Old Iranian source.

'paradise' changed from Old French 'paradis' (borrowed into Middle English) via Late Latin 'paradisus' from Greek 'paradeisos' (meaning 'walled enclosure, park'), which ultimately derives from Old Iranian *paridayda 'enclosed domain', and eventually became the modern English word 'paradise'.

Initially it meant 'walled enclosure' or 'park', but over time it evolved into its current meaning of 'a place or state of perfect happiness, bliss, or beauty'.