'alkalinise' originates from the word 'alkaline,' which comes from the Arabic word 'al-qaly,' meaning 'ashes of the saltwort.'

'alkaline' changed from the Arabic word 'al-qaly' and eventually became the modern English word 'alkaline,' leading to the formation of 'alkalinise.'

Initially, it meant 'to make something alkaline,' and this meaning has largely remained the same in modern usage.