'dairy-based' originates from the word 'dairy,' which comes from Middle English 'deyerye,' meaning 'place where milk is kept,' and 'based,' from Old French 'basse,' meaning 'foundation.'

'dairy' evolved from Middle English 'deyerye' and 'based' from Old French 'basse,' eventually forming the modern English term 'dairy-based.'

Initially, 'dairy' referred to a place where milk was kept, but over time it evolved to include products made from milk, leading to the term 'dairy-based' to describe such products.