'unworkably-changed' originates from the combination of 'unworkable' and 'changed', where 'unworkable' means 'not able to be used or made to work' and 'changed' means 'made different'.

'unworkably-changed' evolved from the words 'unworkable' and 'changed', which have been used in English since the 19th century.

Initially, it meant 'changed to a state of being unworkable', and this meaning has largely remained the same in modern usage.