sap

nouns

a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
sap
is derived from
is a type of (narrower)
a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution
"he used a solution of peroxide and water"
a person who lacks good judgment
a piece of metal covered by leather with a flexible handle; used for hitting people

verbs

deplete
"exhaust one's savings"; "We quickly played out our strength"
is derived from
excavate the earth beneath
sap
is derived from
is a type of (narrower)
hollow out as if making a cave or opening
"The river was caving the banks"