'randomly-placed' originates from the combination of 'randomly' and 'placed', where 'randomly' comes from 'random', meaning 'without a definite aim, direction, rule, or method', and 'placed' is the past participle of 'place', meaning 'to put in a particular position'.

'randomly' evolved from the Middle English 'randoun', meaning 'impetuous course', and 'placed' from the Old French 'placer', meaning 'to place'.

Initially, 'randomly' meant 'impetuous course', but over time it evolved to mean 'without a definite aim or method'. 'Placed' has largely retained its original meaning of 'to put in a particular position'.