'unexpectedly-shown' originates from the combination of 'unexpectedly' and 'shown', where 'unexpectedly' is derived from 'unexpected', meaning 'not anticipated', and 'shown' is the past participle of 'show', meaning 'to reveal'.

'unexpectedly' evolved from the Old English 'un-' meaning 'not' and 'expected', while 'shown' comes from the Old English 'sceawian', meaning 'to look at'.

Initially, 'unexpectedly' meant 'not foreseen', and 'shown' meant 'revealed'. Together, they convey the idea of something being revealed without prior anticipation.