'randomly-chosen' originates from the combination of 'randomly' and 'chosen', where 'randomly' is derived from 'random', meaning 'without a specific pattern', and 'chosen' is the past participle of 'choose', meaning 'to select'.

'randomly' evolved from the Middle English 'randoun', and 'chosen' from the Old English 'ceosan'.

Initially, 'randomly' meant 'with great speed', but over time it evolved to mean 'without a specific pattern'.