Sapping

v. remove sap, drain sap; tire, weaken, exhaust; subvert, undermine; dig a deep trench leading to an enemy's fort (Military)

Sapping, or to undermine or undermining, was a siege method used since antiquity against a walled city, fortress or castle. The term has been borrowed in geomorphology to denote the undermining of slopes by groundwater erosion (see groundwater sapping).
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Noun
1. a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
(hypernym) solution
(hyponym) manna
2. a person who lacks good judgment
(synonym) fool, saphead, muggins, tomfool
(hypernym) simpleton, simple
(hyponym) ass
3. a piece of metal covered by leather with a flexible handle; used for hitting people
(synonym) blackjack, cosh
(hypernym) bludgeon
Verb
1. deplete; "exhaust one's savings"; "We quickly played out our strength"
(synonym) run down, exhaust, play out, tire
(hypernym) consume, eat up, use up, eat, deplete, exhaust, run through, wipe out
(verb-group) play out
(derivation) sapper
2. excavate the earth beneath
(hypernym) cave, undermine
(derivation) sapper

(p. pr. & vb. n.)
of Sap
  

1. <company> SAP AG (Systems, Applications and Products in Data Processing).
2.  Service Advertising Protocol.
3.  Service Access Point.
4.  Symbolic Assembler Program.
(1999-05-26)