Willa is associated with the meaning “Resolute protector, will and determination” — a beautiful sentiment to see brought to life in your child’s room.
Willa is a feminine form of William, which comes from the Old Germanic name Willahelm. That name is built from two roots: "wil," meaning will or desire, and "helm," meaning protection or helmet. Put together, the original meaning translates roughly to "resolute protector." The name entered English through Norman French influence after 1066.