Earnest is associated with the meaning “Serious, sincere, determined in purpose” — a beautiful sentiment to see brought to life in your child’s room.
The name Earnest comes from the Old High German name "Ernust," which meant "vigor" or "seriousness." It entered English through the Germanic languages during the medieval period. The name carries a literal sense of being serious, determined, and sincere. It is the English spelling variant of the more common form, Ernest.