'torch-cut' originates from the combination of 'torch' and 'cut', where 'torch' refers to a tool that produces a hot flame and 'cut' means to divide or sever.

'torch' and 'cut' have been used in English since the Middle Ages, with 'torch' deriving from Old French 'torche' and 'cut' from Old English 'cyttan'.

Initially, 'torch' referred to a portable light source, but in modern usage, it also refers to a tool for cutting metal.