Why Do We Say ‘ It’s Raining Cats and Dogs’?
The curious history of an even curiouser phrase
It’s raining cats and dogs. A common enough phrase.
Makes not the first lick of sense, though. So why do we say it?
Well, there are several folk etymologies floating around, including these from the Library of Congress website:
Odin, the Norse god of storms, was often pictured with dogs and wolves, which were symbols of wind. Witches, who supposedly rode their brooms during storms, were often pictured with black cats, which became signs of heavy rain for sailors. Therefore, “raining cats and dogs” may refer to a storm with wind (dogs) and heavy rain (cats).
“Cats and dogs” may come from the Greek expression cata doxa, which means “contrary to experience or belief.” If it is raining cats and dogs, it is raining unusually or unbelievably hard.
“Cats and dogs” may be a perversion of the now obsolete word catadupe. In old English, catadupe meant a cataract or waterfall. A version of catadupe existed in many old languages. In Latin, for example, catadupa was borrowed from the classical Greek κατάδουποι, which referred to the cataracts of the Nile River. So, to say it’s raining “cats and dogs” might be to say it’s raining waterfalls.
