What is the proper nickname for St. Patrick's Day: St. Paddy's or St. Patty's?

Many insist that Paddy's is the only acceptable choice.

Why? It goes back to the the translation behind the original name. Patrick is an English-made version of the Irish Gaelic name Pádraig.

Many Irish words, terms or names are translated into English or Americanized — and Padraig is one of the victims.

The Patty/Paddy confusion arises from the fact that the Irish name Padraig is Anglicized Patrick, and that “Pat” or “Patty” is usually a shortened, familiar form for “Patricia” more often than for “Patrick” (though many Patricks are of course called “Pat,” adding to the confusion).

Get it right or incur the wrath: