They went with the easy to understand "Risa" which people can remember if I go abroad as well.
Also, my mother likes the Japanese pear (梨) fruit.
There's nothing special (lol)
"Mai" (舞) was so that I would soar high (舞い上がる or maiagaru) in the future.
And on 2/10 the powdered snow was drifting about (舞う or mau/maimasu).
I was curious myself, and when I asked mama she told me "'Nanami' just sounds cute"...!
Their original plan was "Nana", but since mama and my grandmother both had "mi" at the end of their names, they changed it to "Nanami"♪
The character "結" is because I was born after my father and mother got married (結婚)!