No. Lily just means the flower. The name that has a satanic connotation is Lilith.
The phrase "thou art a lily-livered boy" is an insult implying that someone is cowardly or lacking courage. It suggests that the person is weak-willed or easily frightened, similar to the connotation of being timid or spineless.
It is a neutral connotation.
Negative connotation
...connotation!
It is a negative connotation.
uneasy is negative connotation
A general connotation for infinity is forever, but because connotation is dependent on the individual reader, the connotation varies.
Connotation, it combines an adjective with a positive connotation with a verb that has negative connotation.
Negative connotation
No it is a positive connotation.
"Protruding" has a negative connotation; it connotes excess.