Big Unword

We are trying to leave the house and were looking for Sarah's shoes.  My children all have the same blindness when it comes to searching for something.  So after Sarah AND Joseph had made a thorough search of Sarah's room, I went up.  I found them under a dress in the closet.

When I came down with them, Sarah asked me where I'd found them.  When I told her, she replied,

"That's a probabadility!"

I don't know if was or wasn't, but I was impressed by her use of a big word (or unword).