Heaven or sky
Caellum is a modern variant of the Latin word 'caelum', which translates to the heavens or the sky. It carries a celestial and spiritual connotation, often associated with the vastness of the universe. While rare, it fits the contemporary trend of using Latin-inspired names with a soft, melodic sound.
Less common today
Caellum isn't in the latest US Top 1000. It last peaked at #5,242 in 2014.
US births per 5-year period, 1990–present (SSA data).
