'positive-minded' originates from the English word 'positive' combined with 'minded', where 'positive' meant 'having a good effect' and 'minded' referred to 'having a particular attitude or way of thinking'.

'positive' changed from the Latin word 'positivus' and 'minded' from the Old English 'gemind', eventually forming the modern English word 'positive-minded'.

Initially, 'positive' meant 'definite' or 'certain', but over time it evolved into its current meaning of 'optimistic'.