I think it's very much a British trend.
I must admit, some of them I'm not fond of. When the mother of
Nellie, first introduced her name, I had to clench my teeth before responding.
Nell is beautiful, but
Nellie just doesn't do it for me. The only other
Nellie I know, is actually over 80!
~Charley~
https://www.behindthename.com/pnl/184785