'calumny' originates from Latin, specifically the word 'calumnia,' where 'calumnia' meant 'trickery, false accusation.'

'calumnia' transformed into the Old French word 'calomnie,' and eventually became the modern English word 'calumny' through Middle English.

Initially, it meant 'trickery or false accusation,' but over time it evolved into its current meaning of 'a false and malicious statement designed to injure the reputation of someone or something.'