Crossed Fingers - Anecdotal Use

Anecdotal Use

In 16th century England, people crossed fingers or made the sign of the cross in order to ward off evil, as well as when people coughed or sneezed.

The 1787 A Provincial Glossary, with a Collection of Local Proverbs, and Popular Superstitions by Francis Grose records the recommendation to keep one's fingers crossed until one sees a dog to avert the bad luck attracted by walking under a ladder.

In pop culture, crossing one's fingers while promising or taking an oath, signifies that the person is lying, therefore the statement, promise or oath is annuled.