Stalag
Concise Oxford English Dictionary © 2008 Oxford University Press:
Stalag /ˈstalag, ˈʃtalag/
▶noun (in the Second World War) a German prison camp, especially one for non-commissioned officers and privates.
– origin Ger., contr. of Stammlager, from Stamm ‘base, main stock’ + Lager ‘camp’.
'Stalag' also found in these Oxford entries:

