毫无疑问witcher是误翻，和dishonored翻译成羞辱一样太过直译。

狩魔猎人和猎魔人，甚至怪物猎人赏金猎人都要比这个更合适。目前来看狩魔猎人肯定是最恰当的，因为和我们印象中的游走在普世价值观之外，因为强大的力量受人畏惧，拿人钱财，替人消灾几乎是一模一样的。

所以我完全同意楼上答案的解释还有观点，这里再补充一些witch的维基解释

Witch

A witch is a woman who practices witchcraft. Traditionally, the word was used to accuse someone of bewitching someone, or casting a spell on them to gain control over them by magic. It is now also used by some to refer to those who practice various contemporary religions such as Wiccan.

Modern understanding

In the 20th century, a new attempt has been made at understanding witchcraft. Many people say that witches were in fact wise women who were hunted down by the church (mostly for their knowledge of herbsto treat certain diseases). This has led to a new movement. Some of it is known as wicca.

Heather Marsh has tied the persecution of witches to the fight of church and industry to control "the power of life and death" at a time when industry needed more workers. She also argues the persecution of witches was a fight for centralized power over the peasant rebellions and the ownership of knowledge by medicine and science which forbade the earlier teaching or practices by women and indigenous cultures. She writes that the persecution of witches has colored misogyny since the 1400s.^[2]

Silvia Federici tied the witch hunts to a history of the female body in the transition to capitalism.^[3]

Witchcraft and accusations of witchcraft are still very common in some parts of West Africa.

可以看出某种意义上来说杰洛特的法印，控制人类什么的存在一些和witch定义重叠的地方，但是witch的重点在于强调女性，以及受迫害上，反倒是更符合Witcher世界观中“女术士”的定位。所以Witch和Witcher世界观中的Witcher基本可以认定为两种定义。