Verb

(degrad)

To lower in value or social position.

Fred degrades himself by his behaviour.

* Palfrey

Prynne was sentenced by the Star Chamber Court to be degraded from the bar.

To reduce in quality or purity.

The DNA sample has degraded .

(geology) To reduce in altitude or magnitude, as hills and mountains; to wear down.

Verb

(head)

(deteriorate)

Verb

(deteriorat)

To make worse; to make inferior in quality or value; to impair.

to deteriorate the mind

* Southey

The art of war, like every other art, ecclesiastical architecture alone excepted, was greatly deteriorated during those years of general degradation

To grow worse; to be impaired in quality; to degenerate.

* {{quote-news

, year=2011 , date=January 8 , author=Paul Fletcher , title=Stevenage 3 - 1 Newcastle , work=BBC citation , page= , passage=It was turning into an abysmal afternoon for Newcastle and it deteriorated further when Tiote saw red for his challenge on Jon Ashton. }}