sap

noun

The watery fluid that circulates through a plant, carrying food and other substances to the various tissues.

intransitive verb

To undermine the foundations of (a fortification).

noun

A leather-covered bludgeon with a short, flexible shaft or strap, used as a hand weapon.

transitive verb

To hit or knock out with a sap.

noun

A covered trench or tunnel dug to a point near or within an enemy position.

noun

Health and energy; vitality.

noun

A foolish or gullible person.