'allocrotonic' originates from Greek, specifically the word 'allos' meaning 'other' and 'krotos' meaning 'surface'.

'allocrotonic' was derived from the Greek word 'allocrotonikos' and eventually became the modern English word 'allocrotonic'.

Initially, it meant 'pertaining to other surfaces', but over time it evolved into its current meaning of 'involving the movement or displacement of rock layers'.