Those senators were not acting in derogation of the Senate rules or precedents.

CNN: Transcript: White House Counsel Ruff's opening statement

To do so would be a derogation of our constitutional duty.

CNN: Transcript: Opening statement of Rep. Nadler

No derogation or defamation of Nike company, Nike brand or Nike products.

WSJ: David Beckham's Wardrobe Could Be Issue in China

And underlying this confusion is a further derogation - that of an ideal both men shared, which was that the municipalities of the future should utilise increasing land-values to improve the collective lot.

BBC: A Point of View: Staring at the Shard

Any further application of the derogation will be "proportionate and directly relevant", Mr Davies said.

BBC: Snow-hit farmers allowed more time to bury dead animals

The relaxation in the use of hauliers to collect dead animals applies until midnight on 7 May, one week after the end of the derogation permitting burial in certain circumstances.

BBC: Wales snow: Farmers' 4th and final week to bury animals