'scram' originates from American English, possibly a shortening of 'scramble,' where 'scramble' meant 'to move quickly or clumsily.'

'scramble' transformed into the colloquial term 'scram' in the early 20th century, eventually becoming the modern English word 'scram.'

Initially, it meant 'to move quickly,' but over time it evolved into its current meaning of 'to leave quickly or suddenly.'