'predictably' originates from Latin, specifically the word 'praedicabilis,' where 'prae-' meant 'before' and 'dicere' meant 'to say.' 'Shrunk' is the past participle of 'shrink,' which comes from Old English 'scrincan.'

'predictably' changed from the Latin word 'praedicabilis' and eventually became the modern English word 'predictably.' 'Shrunk' evolved from the Old English 'scranc' and became 'shrunk' in modern English.

Initially, 'predictably' meant 'able to be foretold,' and 'shrunk' meant 'contracted in size,' which have largely remained the same in modern usage.