<p>It appears in the form 至關緊要 as well as 至關重要, so possibly related to the antonymous phrase 無關緊要 (unimportant or irrelevant).</p>

<p>The MOE's <a href="http://dict.revised.moe.edu.tw/cgi-bin/newDict/dict.sh?idx=dict.idx&amp;cond=%B5L%C3%F6%BA%F2%ADn&amp;pieceLen=50&amp;fld=1&amp;cat=&amp;imgFont=1" rel="nofollow">國語辭典</a> gives an example of 無關緊要 from the novel 鏡花緣 ("Flowers in the Mirror"), which is 清中葉 (early 19th cent.)  </p>

<p>The claim 至關重要 comes from Lu Yao (1949-1992) is ridiculous; I found an example from the United Daily News (聯合報) in 1951! If I find anything earlier, I'll add it.</p>

CC BY-SA 3.0
2015-07-29T08:34:53.753Z
2015-07-29T08:34:53.753Z
wpt
<p>I happen to have an "Ancient Chinese Dictionary" at hand. I find out several meanings of 关, they are "bolt", "fort or customs", "joint", "run through", "involved in", "inform" and "the driving force system of machine". I think  "driving force system of machine" can make sense, because this is the most principal  part of machine, it could be extend to "important". "至" has the meanings of "up to" and "the most". So, combining "至" with "关", the meaning is " the most important". I hope my answer is helpful.</p>

CC BY-SA 3.0
2014-09-20T20:58:36.847Z
Not sure if this is correct. Would like to read the source of information.
Pete C.
CC BY-SA 3.0
2014-09-20T10:12:05.083Z
2014-09-22T13:25:07.490Z
2014-09-22T13:25:07.490Z
Oliver Redman
<p><code>至关重要</code> strikes me as a four-character idiom instead of a Chengyu, and it didn't even make an entry on 现代汉语词典 or ZDic.net. However, that couldn't explain the fact that the specific character combination <code>至关</code> is exclusively used in this phrase, and this phrase has an incredibly high uniformity, in other word variations of this word almost don't exist. </p>

<p>Usually four-character idioms can be modified to suit the context and people actually do that for colorful speech. But searching 至关 on Google, all results are 至关重要. Searching 至关必要, 至关需要, 至关基本, 至关有效... any possible application yielded zero result. </p>

<p>I was unable to find the etymology in any paper dictionary; some online resources (<a href="http://cy.kdd.cc/A/127/">link1</a> <a href="http://chengyu.xpcha.com/8d9g1fnnq0c.html">link2</a>) suggest</p>

<blockquote>
  <p>典故出处 路遥《平凡的世界》第四卷第43章：“这次命运的大决战不仅对她是至关重要的，对所有的同学都一样。”</p>
</blockquote>

<p>I am not convinced by it - not just the websites don't look too credible, but the book was first published in 1986 and wasn't popular until it won literary prize in 1991, however, back in the early 90's when I attended school, everyone knew the idiom 至关重要 as a common Chinese word. At that time there was no internet and I don't think that novel could have gotten that popular in such a short time frame.</p>

<p>So my question is, what's the real etymology of 至关(重要) and why there is no variations albeit it's commonly used? Was it a 'prescribed' word by some central committee? Did it gain popularity because some famous person or TV commercial used it in a catch phrase?</p>

CC BY-SA 3.0
2014-08-26T20:29:24.040Z
@倪阔乐 Agreed. The point of my question though, is not whether 至关 is a word or not, but where did this specific combination (至+关+重要) come from and how it became popular, and why all other possible combinations/variations (至关+other adjective, 最关重要, 至决重要, etc.) are so uncommon.
NS.X.
CC BY-SA 3.0
2014-08-26T23:11:18.857Z
Have you tried 词源?
Xiaoge Su
CC BY-SA 3.0
2014-08-27T01:26:11.563Z
Try searching for "至关要紧"; there are some results for it too.
congusbongus
CC BY-SA 3.0
2014-08-27T01:45:50.850Z
Also 至关生死, 至关重大, 至关作用, 至关危急, 至关你我, 至关步骤, 至关因素.
杨以轩
CC BY-SA 3.0
2014-08-27T04:09:30.653Z
@QuestionOverflow 至关生死 is a good catch. 至关重大 is a close variation of 至关重要 but much less common. The other ones are actually very rare, at least in Google results.
NS.X.
CC BY-SA 3.0
2014-08-28T02:37:15.247Z
至关重要 is not considered an idiom (chengyu) but a phrase consisting of separate words. So I guess you won't be able to find an etymology for it. I can find half a million Google results for 至关作用 and 至关因素. Maybe it is not that rare.
杨以轩
CC BY-SA 3.0
2014-09-11T14:10:00.083Z
Good question. I dont know the answer, but I'd like to get to the bottom of it.
George Chen
CC BY-SA 3.0
2014-09-22T09:38:38.370Z
There are indications that the phrase is much older than the late 1980s: ["Report of the National Peip'ing (Beiping) Library"](http://books.google.co.uk/books?id=9Bw9AQAAIAAJ) which is meant to date from *1930* contains the phrase 至關重要.
Michaelyus
CC BY-SA 3.0
2015-07-29T20:52:30.567Z
It seems that the 至关重要 question really boils down to how/when 关 can/did mean "relevant" to; the other characters seem logical derivatives of this meaning.  This meaning comes from 涉 as defined in Kangxi : 又涉也。《后汉·张升传》升少好学，多关览。《注》关，涉也.  From which 攸[所]关/关于/other meanings follow, and 至关重要 perhaps evolved naturally at some point.  I agree with 杨以轩 that it's really not an idiom.
Master Sparkles
<etymology>
Etymology of 至关(重要)
# Etymology of 至关(重要)

(Asked by: username_0 on 2014-08-26)

`至关重要` strikes me as a four-character idiom instead of a Chengyu, and it didn't even make an entry on 现代汉语词典 or ZDic.net. However, that couldn't explain the fact that the specific character combination `至关` is exclusively used in this phrase, and this phrase has an incredibly high uniformity, in other word variations of this word almost don't exist.

Usually four-character idioms can be modified to suit the context and people actually do that for colorful speech. But searching 至关 on Google, all results are 至关重要. Searching 至关必要, 至关需要, 至关基本, 至关有效... any possible application yielded zero result.

I was unable to find the etymology in any paper dictionary; some online resources ([link1](http://cy.kdd.cc/A/127/) [link2](http://chengyu.xpcha.com/8d9g1fnnq0c.html)) suggest

> 典故出处 路遥《平凡的世界》第四卷第43章：“这次命运的大决战不仅对她是至关重要的，对所有的同学都一样。”

I am not convinced by it - not just the websites don't look too credible, but the book was first published in 1986 and wasn't popular until it won literary prize in 1991, however, back in the early 90's when I attended school, everyone knew the idiom 至关重要 as a common Chinese word. At that time there was no internet and I don't think that novel could have gotten that popular in such a short time frame.

So my question is, what's the real etymology of 至关(重要) and why there is no variations albeit it's commonly used? Was it a 'prescribed' word by some central committee? Did it gain popularity because some famous person or TV commercial used it in a catch phrase?

**Tags:** etymology
> **Comments:**
> **username_0**: @倪阔乐 Agreed. The point of my question though, is not whether 至关 is a word or not, but where did this specific combination (至+关+重要) come from and how it became popular, and why all other possible combinations/variations (至关+other adjective, 最关重要, 至决重要, etc.) are so uncommon.  
> **username_1**: Have you tried 词源?  
> **username_2**: Try searching for "至关要紧"; there are some results for it too.  
> **username_3**: Also 至关生死, 至关重大, 至关作用, 至关危急, 至关你我, 至关步骤, 至关因素.  
> **username_0**: @QuestionOverflow 至关生死 is a good catch. 至关重大 is a close variation of 至关重要 but much less common. The other ones are actually very rare, at least in Google results.  
> **username_3**: 至关重要 is not considered an idiom (chengyu) but a phrase consisting of separate words. So I guess you won't be able to find an etymology for it. I can find half a million Google results for 至关作用 and 至关因素. Maybe it is not that rare.  
> **username_4**: Good question. I dont know the answer, but I'd like to get to the bottom of it.  
> **username_5**: There are indications that the phrase is much older than the late 1980s: ["Report of the National Peip'ing (Beiping) Library"](http://books.google.co.uk/books?id=9Bw9AQAAIAAJ) which is meant to date from *1930* contains the phrase 至關重要.  
> **username_6**: It seems that the 至关重要 question really boils down to how/when 关 can/did mean "relevant" to; the other characters seem logical derivatives of this meaning.  This meaning comes from 涉 as defined in Kangxi : 又涉也。《后汉·张升传》升少好学，多关览。《注》关，涉也.  From which 攸[所]关/关于/other meanings follow, and 至关重要 perhaps evolved naturally at some point.  I agree with 杨以轩 that it's really not an idiom.  

---

## 2 answers

### Answer by username_7 on 2015-07-29. Score: 3 | Accepted answer

It appears in the form 至關緊要 as well as 至關重要, so possibly related to the antonymous phrase 無關緊要 (unimportant or irrelevant).

The MOE's [國語辭典](http://dict.revised.moe.edu.tw/cgi-bin/newDict/dict.sh?idx=dict.idx&cond=%B5L%C3%F6%BA%F2%ADn&pieceLen=50&fld=1&cat=&imgFont=1) gives an example of 無關緊要 from the novel 鏡花緣 ("Flowers in the Mirror"), which is 清中葉 (early 19th cent.)

The claim 至關重要 comes from Lu Yao (1949-1992) is ridiculous; I found an example from the United Daily News (聯合報) in 1951! If I find anything earlier, I'll add it.


---

### Answer by username_8 on 2014-09-20. Score: 2

I happen to have an "Ancient Chinese Dictionary" at hand. I find out several meanings of 关, they are "bolt", "fort or customs", "joint", "run through", "involved in", "inform" and "the driving force system of machine". I think "driving force system of machine" can make sense, because this is the most principal part of machine, it could be extend to "important". "至" has the meanings of "up to" and "the most". So, combining "至" with "关", the meaning is " the most important". I hope my answer is helpful.

> **Comments:**
> **username_9**: Not sure if this is correct. Would like to read the source of information.  

---

