With the feudal system all but gone, nobles lost their traditional source of power.
The downturn began when Wall Street lost its source of free profits.
This meant that he lost his main source of income.
When it burned down, they both had lost their main source of sustenance.
Merlyn left in rage at losing his source of power.
As a consequence, the home itself lost its source of moral strength.
A closed vein loses its source of blood and dies.
Today, several vendors said they did not much mind losing their one source of income.
Fishing villages on the coast that have lost their old source of income will probably be happy to join in.
One has lost his job and his family's main source of income.