一、意思不同
“hereof”意思是：adv. 关于这个，就此；在本文件中
“thereof”意思是：adv. 它的；由此；在其中；关于…；将它
二、用法不同
1、hereof：通常在句子中作状语，一般置于要修饰的名词的后面，与之紧邻。
例句：This authorization is valid for 7 days from the date hereof.
译文：本授权的有效期为签发日期的7天内有效。
2、thereof：多用于法律用语中，表示由此。
例句：They submit only the data model or a portion thereof.
译文：它们只提交数据模型或者其中的一部分。
扩展资料
“thereof”的近义词：wherein
读音：英 [we?r??n] 美 [wer??n]
意思是：adv. 在其中；在何处
相关短语：
1、wherein detail 在哪方面
2、Testifying Wherein 务要
例句：But what if you have a bunch of files wherein you want to actually replace a
content inside them?
译文：但是，如果你有一大堆的文件，其中要真正取代里面的内容呢？
thereof 英[?ee?r??v] 美[?eer?ɑ:v]
adv. 其; 它的; 关于那; 由此;
[网络] 在其中; 其中; 因此;
[例句]The contractor has included a claim in respect thereof in his final statement.
承包人已在其最终报告中，包括了对此事的索赔。
thereof
of that; of it 由是; 由此; 它的; 其
例句：States differ in standards for products and the labelling thereof. 各个州的不同之处在于产品标准及其(这个“其”指代products)标号。
therefore
for that reason 为此; 因此; 所以
例句：He's only 17 and therefore not eligible to vote. 他才17岁，所有还没有选举权.
thereby
by that means藉以; 从而; 由此:
例句：They paid cash, thereby avoiding interestcharges. 他们付的是现金, 以免付利息.
可以看出，可能导致混淆的仅仅是therefore和thereby，其实区别非常简单，therefore描述的是why, 而thereby描述的是how，上面的例句清楚的表明了这一点。
协议书 Protocol
甲方代表: The representative of Party A
乙方代表: The representative of Party B
经甲乙双方友好协商，一致同意达成以下协议:
Through the friendly negotiations of both parties, the following agreements are reached:
一：甲方同意乙方的付款要求：甲方同意乙方下单后不付定金，但乙方必须在见到提单COPY件后付清100%的全额。
1. Party A agreed to the request of the Party B for payment: Party A agreed that Party B does not pay the deposit after placing an order, but Party B must be paid in 100% once the COPY of bill of lading reached.
二、 甲方要求乙方承诺: 乙方不得取消已确认的订单。一旦乙方要求取消订单，即甲方的所有损失由乙方负责，乙方至少赔理甲方总货款的50%.
2. Party A requires Party B to promise: Party B shall not cancel the commitment once the orders confirmed. Once Party B canceled the order, Party B is responsible for all losses of Party A, Party B should compensate at least 50% of the total amount of payment for goods of Party A.
以上协议签订后即生效，希望甲乙双方共同遵守，否则视为违约，违约金为人民币贰拾万元。协议一式二份，甲乙双方各执一份。
After the signing, the contract is effective, which both parties are required to abide by, or as a breach of contract. The penalty of breach is RMB 200000. The agreement above is made into two copies, both sides armed with a copy of the agreement.
甲方代表签字: The Signature of Party A
乙方代表签字: The signature of Party B
2015年 月 日, , 2015
herein的翻译有：
1.herein provided 除另有规定外
2.you herein below of our terms of shipment in regard to our orders on FOB
terms:
兹将我们按FOB价格条件成交的装运条款函告如下：
3.hereinafter------later in the contract以下, 在下文中
thereof的翻译有：
1.conditions and provisions thereof”，此处的thereof表示“of the Contract”；表示“工程任何部分”，可译为“any parts thereof”，这里的thereof表示“of the Works”。
2.the cessation thereof：税收的停征 thereof：of tax
3.the copies thereof：the copies of the application for arbitration 仲裁申请书副本参考译文：
4.any section or part thereof：工程任何部分、区段 thereof：of the Works参考译文：
therefrom的翻译有：
This deed of undertaking is true and correct, on date hereof no part of it is false or misleading and nothing material has been concealed or withheld there from and is executed at (Beijing Notary Office) on this ( first day of April, 2009).
2009年4月1日于北京公证处签署执行的本承诺契约，截至本日期是真实与正确的，毫无虚假或误导性内容，而且没有掩饰或隐藏任何重要信息。
hereof
adv.
关于这个
本, 此; 在本文(件)中
upon the receipt hereof
据比收条
more hereof later
(关于这一点)详见后文
hereto
ad. 到此为止, 关于这个
【法】 至此为止, 至此
(法律) =to this contract (本合同所指的)
与 hereto 相关的例句
According to the schedule of payment attached hereto
根据在此附上的付款计划表
We attach hereto two extra copy of invoice covering our shipment.
关于所装运货物，兹附寄发票副本两份。
thereto
词性及解释
ad. 往那边, 到那
与 thereto 相关的例句
with all the appurtenances fitting thereto.
所有的配件都装备在那里。
The castle stands on a hill, and the road thereto is steep and rough.
城堡建在山上，去那儿的路陡峭崎岖。
hereof
adv.
关于这个
本, 此; 在本文(件)中
upon the receipt hereof
据比收条
more hereof later
(关于这一点)详见后文
hereto
ad. 到此为止, 关于这个
【法】 至此为止, 至此
(法律) =to this contract (本合同所指的)
与 hereto 相关的例句
According to the schedule of payment attached hereto
根据在此附上的付款计划表
We attach hereto two extra copy of invoice covering our shipment.
关于所装运货物，兹附寄发票副本两份。
herein， in this place or thing or document 在此处,如此,鉴于 (另有说明)
thereafter，from that time on 其后,从那时以后
thereon， on that关于那
hereby, by means of this 特此（申明，……）
thereby， by that means or because of that 因此,从而
whereby， by what means or because of what 借此(在...旁,凭什么)
whereof， 甚么的,关于甚么的,以什么的
Q1. thereafter (此后)
Q2. thereby (因此)
当代英语中常常出现古英语的痕迹.在合同\协议等文件中此类古英语词汇仍然屡见不鲜.
说实在的,它们颇让人感到枯燥无味,但是,我们既然学习法律英语,就必须对它们有个大致的掌握.大家说呢?
HERE系列
herein-----in
this于此, 在这里
1. except as otherwise
herein provided 除另有规定外
2. This is to inform
you herein below of our terms of shipment in regard to our orders on FOB
terms:
兹将我们按FOB价格条件成交的装运条款函告如下：
hereinafter------later in the contract以下, 在下文中
China International
Economic and Trade Arbitration Commission (CIETAC in brief and hereinafter
referred to as the Arbitration Commission, also named as the Court of
Arbitration of China Chamber of International
Commerce)中国国际经济贸易仲裁委员会(英文缩写CIETAC，同时称中国国际商会仲裁院，以下简称贸仲委)
herewith-----with this同此, 因此
I enclose herewith a
cheque for20pounds. 随信附上二十镑支票一张
hereafter----following this今后, 从此以后
Buyer request special
packaging hereafter he agree bearing extra cost
involve.买主要求特殊包装，他们同意负担可能出现的额外费用。
hereby---by this means or by reason of this因此, 据此
We hereby inform you
that your last shipment has apparently been lost.
上批货物已明显遗失，特此通知。
hereof-----of this于此, 关于此点
1. more hereof later
.(关于这一点)详见后文.
2 .You will find the
signature of Mr.Yokota at the foot hereof.
横田先生签名如下。
hereinbefore---in a preceding part of the contract以上, 在上文中
hereunder-----under this在此之下, 在下(文)
hereto---to this到此为止, 关于这个
According to the
schedule of payment attached hereto根据在此附上的付款计划表。
THERE系列
therein--in that在那里
Please note that all
the prices stated therein are subject to change on account of market
fluctuation.
请注意表列价格须随市场变动而修改。
thereinafter---in that part of the contract在下文, 以下,在下一部分中
thereafter---after that其后, 从那时以后
thereto--to that往那里,此外
thereby--by that means因此
thereof--of that关于
e.g 1.In witness whereof;in testimony thereof .以资证明 2.
Please take note thereof,and honour his draft on presentation. 惠请予以留意，当他向贵行提示汇票时，予以承兑为荷。
thereunder--under that part of the contract在其下,依据
thereupon--as a result of that 因此
WHRER系列
whereat---at which point对此,对那个
e.g I know the things whereat you are displeased.
wherefore--for what reason;why为什么, 因此
e.g Every why has a [ its ] wherefore.[谚]凡事均有因；有理由必有原因。
whereof-----of which关于什么
wherein ---in which在何处, 在其中
whereon--on which于其上
whereupon----upon which at which于是, 因此
THEN系列
thence--from that place;from that time从此, 从那里起
We can fly to London and thence to Paris.
thenceforth---from that time onward;thereafter从那时以后，从那时起
Women are given the same rights as men;thenceforth they can vote. 妇女被授予男人同样的权力；从那时起，妇女可以选举了。
资产阶级法学在文风上刻意避免通俗化，堆砌罕用词，古体词甚至掺杂外语，从而使法律解释完全成为资产阶级及其豢养文人的游戏。这和其所标榜的“法律面前人人平等”形成鲜明对比，也印证了资产阶级法制的虚伪性。
Here/there/where+介词构成的古体词
基本规则：Here代表this，there代表that，where代表which或what即here/there/where+介词=介词+this/that/which or what
Herein：in this。此中，于此。
例句：The minimum royalty herein specified shall be paid by Party B to Party A. 在此规定的最低特许权使用费应由乙方付给甲方。
Hereof：of this。关于此点，在本文件中。
Hereunder：under this. 本文件规定。
例句：Both parties agree to attempt to resolve all disputes between the parties with respect to the application or interpretation of any term hereof of transaction hereunder, through amicable negotiation.
合同双方就本合同规定交易任一条款的适用和解释所产生的所有争议同意力求通过友好协商予以解决。
Hereto：to this.本文件的。Thereof：of that.它的，其。Thereto：to that 与之，向那里。
例句：“Licensed Products” means the devices and products described in Schedule 1 annexed hereto together with all improvement and modification thereof or development with respect thereto.
“特许产品”系指在本协议附件1中所述的装置和产品，及其全部改进和修改的产品和与之相关的产品。
参考资料：http://www.ilaw.cn/blog/user1/3/subject/19.shtml