f. bozmak, çürümek; bozulmak, yıkılmak. I’m afraid it will decay in a short time. (Korkarım kısa süre içinde bozulacak.)

To pass gradually from a sound, prosperous, or perfect
state, to one of imperfection, adversity, or dissolution; to waste
away; to decline; to fail; to become weak, corrupt, or disintegrated;
to rot; to perish; as, a tree decays; fortunes decay; hopes decay.

To cause to decay; to impair.

To destroy.

Gradual failure of health, strength, soundness, prosperity,
or of any species of excellence or perfection; tendency toward
dissolution or extinction; corruption; rottenness; decline;
deterioration; as, the decay of the body; the decay of virtue; the
decay of the Roman empire; a castle in decay.

Destruction; death.

Cause of decay.