Sapping meaning
Definitions of sapping is:
  • noun sapping
    Fortification. a deep, narrow trench constructed so as to form an approach to a besieged place or an enemy's position.
  • verb with object sapping
    Fortification. to approach (a besieged place or an enemy position) by means of deep, narrow trenches protected by gabions or parapets. to dig such trenches in (ground).
  • verb with object sapping
    to undermine; weaken or destroy insidiously.