bedlam
Concise Oxford English Dictionary © 2008 Oxford University Press:
bedlam /ˈbɛdləm/
▶noun
- 1 a scene of uproar and confusion.
- 2 archaic an asylum.
– origin ME: early form of Bethlehem, referring to the hospital of St Mary of Bethlehem in London, used as an asylum for the insane.
'bedlam' also found in these Oxford entries:

