Word Shaker

From the text:

One day, however, she met a man who was despised by her homeland, even though he was born in it. They became good friends, and when the man was sick, the word shaker allowed a single teardrop to fall on his face. The tear was made of friendship—a single word—and it dried and became a seed, and when next the girl was in the forest, she planted that seed among the other trees. She watered it every day.