Rosie or Rosy

[KoalaDownUnder]

Which spelling do you prefer?

Asking for a friend (am most definitely not up-duffed!)

Rosie.

Definitely Rosie.

Rosie for me.

Rosie

I know a girl called Rosey - she was named after her grandmother who's full name was Rosemary, but nn Rosey. Her mother wanted to keep her mother's spelling.