'gradually' originates from Latin, specifically the word 'gradualis,' where 'gradus' meant 'step.' 'End' originates from Old English, specifically the word 'endian,' meaning 'to bring to a conclusion.'

'gradualis' transformed into the French word 'graduel,' and eventually became the modern English word 'gradual.' 'Endian' evolved into the modern English word 'end.'

Initially, 'gradual' meant 'by steps,' and 'end' meant 'to bring to a conclusion.' Over time, 'gradually-ended' evolved to mean 'having come to an end in a slow and progressive manner.'