good nature
A kindly, affable, beneficent, and/or obliging propensity or personality. Mark's good nature has made the death of my mother so much easier to bear. It was thanks to the good nature of my thesis supervisor that I felt so confident writing my dissertation. Margaret has such a good nature, always willing to lend a hand no matter what the task may be.
good nature
A cheerful, obliging disposition, as in Ted is known for his good nature-he's always willing to help. [Mid-1400s]