Re: "get a guernsey"?
> A "guernsey" is the knitted garment you might wear playing football
Hmm. That's news to me. A "geansaí" (pronounced ganzi) in Irish is a sweater/jumper/pullover/shirt (sport). I'm not sure of the etymology but it looks more like it got borrowed into English than the other way around. At least it seems like a native Irish word to me.