I believed that the word optimistic was something to do with opticians and being happy with your eyesight.
A childhood belief about speaking

others believed things like this
- I generally believed in happy endings!— Claire
- I believed the mosque down the road was Aladdin's castle, and my mum went along with it to keep me happy.— Elena
- my husband believed, until recently, that the word "several" meant seven of something. — sheryl
- Like most kids growing up, I believed there was an upside-down word on the other side of the mirror.— Taylor (14)
- As a small child I believed that the word was "nakeup", finally I found out that it was actually "makeup".— Hannnah P.
- I fully believed, up until about 6 years old, that the word 'accident' was a noun that meant 'burnt toast'.— Karl Goetz