noun
degradation
deg-ruh-DAY-shun/ˌdeɡrəˈdeɪʃn/
Deterioration to a poorer or lower condition.
The bench's degradation progresses from weathered wood to broken, rotten planks.

Etymology
“Down” and “step” suggest movement to a lower level. Degradation originally named reduction in rank or dignity, then broadened to a lowering of quality, strength, value, or condition.
In context
all human beings possessed inherent dignity that public degradation violated.
More examples
- Overgrazing speeds up soil degradation on the hillside.
- Heat accelerates the degradation of the chemical into simpler compounds.
- The prisoners suffer degradation when guards treat them like animals.
Forms
degradation
degrade verb — To make worse in quality or condition.
Similar words
- deterioration
- Focuses on worsening condition, without necessarily implying chemical breakdown.
- decay
- Usually suggests gradual breakdown through natural or biological processes.
- decline
- Suggests a downward trend in quality, strength, or performance.