'predictably-ended' originates from the combination of 'predictably' and 'ended'. 'Predictably' comes from 'predict', which originates from Latin, specifically the word 'praedicere', where 'prae-' meant 'before' and 'dicere' meant 'to say'.

'predictably' changed from the Latin word 'praedicere' and eventually became the modern English word 'predict'. 'Ended' comes from Old English 'endian', meaning 'to bring to an end'.

Initially, 'predict' meant 'to say before', but over time it evolved into its current meaning of 'to foresee or anticipate'. 'Ended' has largely retained its original meaning of 'to bring to a conclusion'.