extension的词源

英文词源

extension (n.)

c. 1400, "swelling, bulging," from Latin extensionem/extentionem (nominative extensio/extentio) "a stretching out, extension," noun of action from past participle stem of extendere (see extend). In a concrete sense, "extended portion of something" (a railroad, etc.), from 1852. Telephone sense is from 1906.

中文词源

extension：扩大，延长

来自extend, 延长。

该词的英语词源请访问趣词词源英文版：extension 词源，extension 含义。

extension：延长，伸展，扩大；电话分机 

词根词缀： ex-出,向外 + -tens-延伸 + -ion名词词尾