Demised Premises??

• The portion of the entire property which is leased to a particular tenant.
www.gibbons-realty.com/dictionary/D.html

http://www.google.com/dictionary?langpair=en|en&q=demised+premises&hl=en&aq=f

I'm reading for Property and I just HAD to post on this legal "term of art."

Will a Realtor (or maybe an attorney, I guess) out there please explain why on earth the property I rent is called "demised."  Yes, I know my place is pretty old and a little suspect downstairs, but demised?

In case you forgot, here's the usual use of the word demise:

The demise of something or someone is their end or death. N-SING usu with poss formal

• 
  
  ...the demise of the reform movement.
• 
  
  Smoking, rather than genetics, was the cause of his early demise.

http://www.google.com/dictionary?langpair=en|en&q=demise&hl=en&aq=f

So, in the words of one of my professors, someone needs to "splain.'

F-Word?