Employers must not discriminate against candidates based on their religion.

discriminate 是动词，由前缀 dis-（表示"分开"）和词根 crimin（来自拉丁语 crimen，意为"区分、判断"）组成，加上动词后缀 -ate。原意是"区分、辨别"，在现代英语中常指"不公平地区别对待"，即"歧视"。