'moral' originates from Latin, specifically the word 'moralis,' where 'mores' meant 'customs' or 'manners.'

'moralis' transformed into the Old French word 'moral,' and eventually became the modern English word 'moral' through Middle English.

Initially, it meant 'pertaining to manners or customs,' but over time it evolved into its current meaning of 'relating to principles of right and wrong behavior.'