noun
verb
definition
To drain, suck or absorb from (tree, etc.).
definition
To exhaust the vitality of.
noun
definition
A short wooden club; a leather-covered hand weapon; a blackjack.
verb
definition
To strike with a sap (with a blackjack).
noun
definition
A narrow ditch or trench made from the foremost parallel toward the glacis or covert way of a besieged place by digging under cover of gabions, etc.
verb
definition
To subvert by digging or wearing away; to mine; to undermine; to destroy the foundation of.
definition
To pierce with saps.
definition
To make unstable or infirm; to unsettle; to weaken.
definition
To gradually weaken.
example
he saps my energy
definition
To proceed by mining, or by secretly undermining; to execute saps.