Liquidity Assistance, ELA. But there are rules about how it's done, and the ECB's Governing Council can put a stop to it.
The Council is the committee which takes the key policy decisions. It includes the six top executives at its Frankfurt headquarters, and the head of each of the national central banks.
One of those national central bank governors is Jens Weidmann. He is seen as a key voice for central banking orthodoxy, including sticking to the rules of the ELA.
The economic crisis in Cyprus sparked widespread demonstrations
The ELA is only supposed to be available to banks that are solvent but face temporary difficulty raising the funds they need to make all the payments that come due.