But the word root goes back to Indo-European.

不过，人们得把它的词根追溯到印欧语系了。

The often dental consonant of no Indo-European language.

我们不满的时候经常用它在印欧语系中可找不到词源。

Both thumb and thigh go back to the same Indo-European root.

拇指和大腿这两个词语都可以追溯到同一个印欧语系词源。

In fact our word lean evolved from the same Indo-European root.

事实上，我们语言中的lean也是来源同样的印欧语系。

One of these features is the appearance of retroflex consonants in Indian languages, both Indo-European and Dravidian .

这些特征之一是出现在印度语言里的卷舌音，印欧语系和德拉威语系都存在。

The American Heritage Dictionary points back to an Indo-European root ker meaning “to grow.”

《美国传统英语词典》指向了一个印欧语系的词根ker，意为“成长（togrow）”。

The root of his name is thought to come from an Indo-European root ei meaning “to go,” again, as one does through a doorway.

他的名字的来源被认为是来自印欧语系的一个词根，意为“向前走”，再一次的，需要经过一道门。

In the English language belongs to the Indo-European family of languages of the Germanic West Germanic languages and through the United Kingdom colonies spread all over the world.

英语属于印欧语系中收耳曼语族下的西日耳曼语支，并通过英国的殖民活动传播到世界各地。

The root of the Latin flora is thought to come from an Indo-European word bhlo that also percolated up through Germanic and Old English to give us bloom.

通常认为拉丁词语flora的词根来自于印欧语系中的bhlo，这个词通过日耳曼语和古英语还演变成了bloom。

The American Heritage Dictionary takes the techn root back beyond Greek to Indo-European teks meaning to weave, linking it to the root of the word textile.

《美国传统词典》（American Heritage Dictionary）把techn的根源追溯到比希腊语更早的印欧语系的teks，它的意思是编织，与单词textile（纺织品）的根源相关。