noun, verb, shored, shor⋅ing.| 1. | a supporting post or beam with auxiliary members, esp. one placed obliquely against the side of a building, a ship in drydock, or the like; prop; strut. |
| 2. | to support by or as if by a shore or shores; prop (usually fol. by up): to shore up a roof; government subsidies to shore up falling corn prices. |

shore up
Support, prop, as in The new law was designed to shore up banks in danger of failure. This expression derives from the noun shore, meaning "prop," a beam or timber propped against a structure to provide support. The verb shore dates from 1340 and was first recorded in a figurative context in 1581.