debase

动词 debase:

1. corrupt morally or by intemperance or sensuality
   同义词：corrupt, pervert, subvert, demoralize, demoralise, debauch, profane, vitiate, deprave, misdirect
2. lower in value by increasing the base-metal content
   同义词：alloy
3. corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones
   同义词：adulterate, stretch, dilute

1. Sport is being debased by commercialism.
   体育运动的价值受商业化的影响而逐渐下降。
2. You debase yourself by telling such lies.
   你说这些谎话就降低了身份。

de.base

v.tr.（及物动词）
de.based,de.bas.ing,de.bas.es
To lower in character, quality, or value; degrade.See Synonyms at adulterate See Synonyms at corrupt See Synonyms at degrade
降低…的特性、品质或价值；降低参见 adulterate参见 corrupt参见 degrade

来源：
de-
de-
base 2
base2

【引伸】
debase.ment
n.（名词）
debas.er
n.（名词）