'self-destroyer' originates from the combination of 'self' and 'destroyer', where 'self' refers to one's own person and 'destroyer' means 'one who causes destruction'.

'self-destroyer' evolved from the concept of self-inflicted harm or destruction, combining the idea of self with the act of destroying.

Initially, it meant 'one who destroys oneself', and this meaning has largely remained the same in modern usage.