'pluton' originates from French, specifically the word 'pluton,' where 'pluto-' referred to the god of the underworld, symbolizing the deep formation of these rocks.

'pluton' was borrowed from the French word 'pluton,' which was derived from the Latin 'Pluto,' the god of the underworld, and eventually became the modern English word 'pluton.'

Initially, it referred to the god of the underworld, but over time it evolved into its current geological meaning of a deep-seated igneous rock formation.