[Homer Simpson]
Cecil is a girl’s name.
[/Homer Simpson]
Um don’t you mean Cecile or Cecilia?
Cecile, or Cecilia, or Cecily are girls’ names. Cecil is a boy’s name.
Is Cecil short for something?
I think it’s from the Greek for “ultimate genius.” 
The OP is a Simpsons reference.
You win the award for most obvious statement of the day. (the homer simpson tag kind of gave it away)
It sounds like the latin for ‘sea-salt’
I know it was obvious, but a few other posters appeared to think it was a serious question.
To business:
Behind the Name.com give the following definition:
CECIL m English
Pronounced: SEE-sil
From the Welsh name Seissylt, which was from the Roman name SEXTUS. It can also derive from the Roman name Caecilius (see CECILIA), which was the name of a 3rd-century saint, a companion of Saint Cyprian.
Sooo…
SEXTUS m Ancient Roman
Roman praenomen, or given name, which meant “sixth” in Latin. It was traditionally given to the sixth child.
AND
CECILIA f English, Italian, Spanish, Scandinavian
Pronounced: se-SEE-lee-a, se-SEEL-ya
Latinate feminine form of the Roman family name Caecilius, which was derived from Latin caecus “blind”. According to legend, Saint Cecilia was a 3rd-century martyr who was sentenced to die because she refused to worship the Roman gods. After attempts to suffocate her failed, she had her head chopped off. She is the patron saint of music and musicians.
Cecilia, you’re breakin’ my heart/You’re shakin’ my confidence, baybeeee…
I think it’s actually “dailyeeeee…”
I think it’s both, at different points in the song.