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to sap

to sap

1 9.6
To dig under a wall or building to make it weak
  • verb
  • /sæp/
  • Archaic
translation icon : socavar
  • Engineers began to sap the ground beneath the fortress walls to create a vulnerability for the assault.

Examples

  • They believed the war would also limit their influence over other countries in the region and would sap their military capabilities.

    Academic text (1991)
  • Naturally, soldiers weren't allowed tobacco, which would sap their wind and stamina.

    Fiction book (1990)
  • The method of operation of Al-Qaeda and its allies is today what it has long been: spread out U.S. military assets so as to sap their reserves and flexibility.

    Blog text (12)
  • The heat sapped the army, and morale sank when rumors reached them of a Spartan revolt back home.

    Fiction book (1999)
  • The enemy troops used tactics to sap our defenses, making it easier for them to attack.

  • In order to sap the leader's influence, the rival faction spread rumors among the soldiers.

Synonyms

to dig out
vsto sap
14 3.2

Remove something that is under the ground or snow using a shovel

aims specifically to excavate under supports to weaken them, not just remove items
to undermine
vsto sap
8 6.8

Remove the ground or support under something so it becomes weak

focuses on excavating beneath to weaken supports, often for military purposes

Antonyms

1.0

Give help to a person or idea

3 5.1

Make something stronger by adding support or protection

Idioms

to feel like a sap
  • Offensive
1 9.9

To feel silly for believing someone who tricked you

How Damaging

to destroy
1.0
to undermine
270 6.8
to sap
  • Archaic
1 9.6
to erode
83 4.2

Surface Forms

sap infinitive
sapped past
sapped past participle
sapping present participle
saps third person singular

Etymology

Sap — The verb sap in war comes from an old idea of digging under walls; to sap a fort is to 'dig under' its base so it will fall. That's why sap means to weaken something by removing its support.