Sorrinesses are feelings of being sad or regretful about something.
Sorrinesses are not good feelings, but it's okay to feel sorrinesses sometimes.
Examples:
Her sorrinesses about the argument made her apologize.
I could see the sorrinesses in his eyes.
The sorrinesses in his voice made me forgive him.
The cat's sorrinesses for knocking over the vase was clear.
His sorrinesses for eating all the cookies was so big, he bought more cookies for everyone.
The sorrinesses in the story made everyone cry.