RULY

The puzzle is different than how I explained it:

The object is to arrange 16 different letters of the alphabet into a 4-by-4 square, so that four common, uncapitalized words read across and four common uncapitalized words read down. To start, the second word across is ruly. This is the only sightly unusual word in the square. Every other word in it is one any school child would know. Can you do it?