Thread:GreenMoriyama/@comment-28254399-20170910221156/@comment-3391671-20170910222445

The Celtic one you propose does seem to be a better root of the name. What you can do is make an additional bullet point after the "heaven" one, stating "The name could have also come from..."

As for "celia," make a note in the "heaven" trivia that the name's origin typically yields Celia more than being Kaylee/Kelly.