'randomly-scattered' originates from the combination of 'randomly' and 'scattered', where 'randomly' comes from 'random', meaning 'without definite aim, direction, rule, or method', and 'scattered' from 'scatter', meaning 'to throw loosely about'.

'randomly-scattered' evolved from the combination of the words 'randomly' and 'scattered', which have been used in English since the 14th and 15th centuries respectively.

Initially, 'randomly-scattered' meant 'spread without order', and this meaning has largely remained the same in modern usage.