My friend used to believe she had two names : iza belka (belka means beam). in fact her name is izabelka (english elizabeth)
A childhood belief about names

others believed things like this
- I used to believe that everyone had the same middle name as me... Elizabeth.
(even my uncles)— K.O. - I used to think that if you shone a flashlight beam onto a lightbulb long enough, it would eventually light.— Karen K
- I used to think that even people who spoke something other than English, thought in English— Peaches
- I used to believed that "approximately" actually means "important".Anon
- At the age of around five, I realized that my mum's and dad's names were not mum and dad!— yelloworpurple
- I, to this day, believe that when I can't sleep at night it means I'm awake in someone else's dreams... — Turner