'quickly-shifted' originates from the combination of 'quickly,' derived from Old English 'cwic,' meaning 'alive,' and 'shifted,' from Middle English 'shiften,' meaning 'to change or move.'

'quickly' evolved from Old English 'cwic,' and 'shifted' from Middle English 'shiften,' eventually forming the modern English compound 'quickly-shifted.'

Initially, 'quickly' meant 'alive' and 'shifted' meant 'to change or move,' but over time, they combined to describe rapid movement or change.