'plotter' originates from the word 'plot,' which comes from Old English 'plot,' meaning 'a small piece of ground.'

'plot' evolved from the Old English word 'plot' and eventually became the modern English word 'plotter' to describe someone who makes secret plans.

Initially, 'plot' referred to a piece of land, but over time it evolved to mean a secret plan, leading to the term 'plotter' for someone who makes such plans.