I've never in my life heard anyone say
Madeline "-line." That sounds wrong to me, or poetic/synthetic. It's "-lin" in real life as far as I'm concerned.
Emmeline = line
Caroline = line
Adeline = line
Evangeline = lin
Jacqueline = lin (contrary to French original prn)
Madeleine = len (very close to
Madelyn)
Angeline = leen
Magdalene = leen
- mirfak