hidden reserve

The camerlegno spoke forcefully now, as though tapping a hidden reserve of power.

We won't be sure they have no hidden reserves.

Calling on some hidden reserve of strength, Charlus had made his way up the stairs.

Now he tore aside the last barriers between his conscious mind and those hidden reserves.

Denise drew a long, uneven breath, as if trying to draw strength from some hidden reserve.

Calling upon his hidden reserves of stamina to overcome physical weakness.

The crisis had renewed his strength, allowing him to draw upon hidden reserves of energy.

Somehow, from where he did not know, Michael found a small hidden reserve of energy.

It means hidden reserves; like savings for a rainy day.

The nation's biggest banks and insurers hold more than $150 billion of hidden reserves, shares in companies that were acquired over many decades.