'factory-made' originates from the combination of 'factory' and 'made', where 'factory' refers to a place where goods are manufactured, and 'made' is the past participle of 'make', meaning 'to create or produce'.

'factory' comes from the Latin word 'factorium', meaning 'a place where something is made', and 'made' is derived from the Old English 'macian', meaning 'to make'.

Initially, 'factory-made' simply referred to items produced in a factory setting, and this meaning has largely remained the same in modern usage.