Celeste comes from the Latin caelestis, meaning "heavenly" or "of the sky." The same root gives the English "celestial."
Celeste has been rising rapidly in the U.S., currently sitting in the top 250. The character Celeste in Big Little Lies (played by Nicole Kidman) and the video game Celeste have given the name fresh visibility.
Celeste reduces to seven — the number of celestial contemplation.