'enigmatic' originates from Greek, specifically the word 'ainigma,' where 'ainigma' meant 'riddle.'

'ainigma' transformed into the Latin word 'aenigma,' and eventually became the modern English word 'enigmatic' through Old French 'énigmatique.'

Initially, it meant 'riddle or puzzle,' but over time it evolved into its current meaning of 'mysterious or difficult to understand.'