to make cheap or cheaper.

to lower in esteem; bring into contempt

Constant swearing cheapened him.

to decrease the quality or beauty of; make inferior or vulgar

She cheapened the dress by adding a fringe to it.

Archaic . to bargain for.

to become cheap or cheaper.

verb

appreciate , enhance , increase , raise , upgrade

verb

abase , beat down , belittle , corrupt , damage , debase , decline , decry , degrade , demean , denigrate , depreciate , derogate , devalue , discredit , disparage , downgrade , drop , fall , lose value , lower , mar , mark down , minimize , reduce , render worthless , ruin , spoil , undervalue , write off , depress , devaluate , write down , adulterate , diminish