I think
Destiny is pretty. I also think
Serenity is pretty. I don't have too much of a problem with turning pretty words into names, as long as the words don't have either negative or humdrum meanings. I don't like
Trinity, but that's because I don't find "trinity" a pretty word.
I doubt that most mothers of Destinys are thinking at all of the word's meaning, just as I doubt most mothers of Trinitys are thinking of The Father, The Son, and The Holy
Spirit. (I used to hear "The Holy Ghost" when I was a kid, but I understand that's gone out in favor of "The Holy
Spirit.") I can't say the same for the woman I met who had a daughter named Reality, though.