a cognate word的用法和样例：
- English apple and German apfel are cognate words.
英语的 apple 和德语的 apfel 是同源词(或同根词)。
- Being attributed to the same type of cognate word, though, as different kind of sememe of "Ming" and "Ling", they are diverse in the choice of subject and content of the language.
- I would like to have a word with you.
- The cognate words which used "jade"as root developed very fast in the ancient Chinese vocubulary.
在古代汉语词汇中 ,以“玉”为词根的同根词十分发达 ,而且衍生得极其快。