它来自条顿语，这一猜测基于一条古拉丁语的引述。

Teutonic, based on an old Latin quote, or

youdao

最后谨以一句古拉丁格言与各位共勉：死神不至，奋斗不止。

So I end with a land from a Latin voice: death, death, clutches my ear, and says, live, I am coming.

youdao

古英语的日耳曼用户（在使用这套字母时）打翻了一堆的拉丁语对字母发音的规则，于是古英语的使用者们决定他们需要一个新的字母来发W的音。

The Germanic pronunciations of Old English broke a bunch of rules that the alphabet was supposed to observe in Latin and so Old English speakers decided they needed a new letter to make the W sound.

youdao

So when you see the word "book" in ancient Greek or Latin, they didn't think of this. They thought of scrolls.

当看到古希腊语或拉丁语的书这个字，他们不会想到这个，他们会想到书卷。

耶鲁公开课 - 新约课程节选