what is a PECCADILLO?

[noun. PEK-uh-DIL-oh]

A peccadillo is a small sin, minor fault, imperfection or flaw that is easily forgiven.

With its root in Latin, the word peccare means to make a mistake, blunder or sin, and later the Spanish pecado also carried the full force of a major transgression while a pecadillo, a small sin, was something that could be forgiven or over easily looked. 

In the 1500s, that word entered the English language with a sense of youthful foolishness and was viewed as a forgivable.