Blind
Sesilia is a variant of Cecilia, which is derived from the Roman family name Caecilius. The name is rooted in the Latin word 'caecus', meaning blind, but it is also deeply associated with Saint Cecilia, the patron saint of music.
Less common today
Sesilia isn't in the latest US Top 1000. It last peaked at #11,550 in 2001.
US births per 5-year period, 1990βpresent (SSA data).