'vaguely-shown' originates from the combination of 'vague' and 'shown'. 'Vague' comes from Latin 'vagus', meaning 'wandering' or 'uncertain', and 'shown' is the past participle of 'show', from Old English 'sceawian', meaning 'to look at'.

'vague' evolved from Latin 'vagus' through Old French 'vague', and 'shown' evolved from Old English 'sceawian'.

Initially, 'vague' meant 'wandering' or 'uncertain', and 'shown' meant 'to look at'. Together, they convey the idea of something not clearly visible or understood.