To DESCEND is to climb down.
To DEPOSE a king is to put him , from his throne.
A chandelier DEPENDS, or hangs down, from the ceiling.
A DELEGATE is a person sent away as a representative.
The leaves of DECIDUOUS trees fall off in winter.
If a car DEPRECIATES in value, the price goes down.
Also: debase, desist, decadence, decease, decline, decode, decompose, deduct, deflate, degenerate, dejected, demented, depart, despise, destruction.