Which word is commonly used ...

A little boy opened the big, old family Bible with fascination. He looked at the old pages as he turned them. The Bible had belonged to his grandmother. Then something fell out of the Bible. He picked it up and looked at it closely. It was an old leaf from a tree that had been pressed between pages. "Momma, look what I found," the boy called out. "What have you got there, dear?" his mother asked. With astonishment in the young boy's voice he answered, "I think it's Adam's suit.."...