'clearly-shown' originates from the combination of 'clear' and 'show', where 'clear' meant 'free from doubt' and 'show' meant 'to make visible'.

'clearly-shown' evolved from the Old English word 'sceawian', meaning 'to look at', and 'clæne', meaning 'pure or clear', eventually forming the modern English term 'clearly-shown'.

Initially, it meant 'to make something visible without doubt', and this meaning has largely remained the same in modern usage.