勾股定理
gōu​gǔ​dìng​lǐ

Pythagorean theorem

勾 gōu hook

勾 originated as a variant of 句. 口 represents the sound and 丩 represents the meaning and the sound.

Components

丩
丩 SoundMeaning component
jiū join
口
口 Sound component
kǒu, kou mouth
Change in form
Due to historical stylistic changes, this component is less similar to 口 than it was in ancient scripts.

Component uses

Sound (3 of 5 verified)

构购沟钩鈎

Meaning (0 of 2 verified)

钩鈎

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartkuw[k]ˤ(r)ocurved
kuwH[k]ˤ(r)ok-sloan for 彀 draw a bow to the full
Zhengzhangkoː
koːs

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-SagartZhengzhang Shangfang

股 gǔ, gu thighs

Originally written as 夃, depicting a person with a marker indicating the location of the thigh. Later the ⺼ component was added.

Components

⺼
⺼ Meaning component
ròu meat, flesh

⺼ is a component form of 肉.

夃
夃 SoundMeaning component
gū, yíng thigh

Modern form looks like 殳.

Change in form
Due to historical stylistic changes, this component is less similar to 夃 than it was in ancient scripts.

Character Evolution

Bronze form
Bronze Late Western Zhou ~800 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartkuXkʷˤaʔ thigh

說文解字

《說文》：“股，髀也。从肉，殳聲。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

定 dìng settle

Phonosemantic compound. 宀 represents the meaning and 正 represents the sound.

Components

宀
宀 Meaning component
mián roof
正
正 Sound component
zhèng, zheng, zhēng correct
Change in sound

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Mid Western Zhou ~900 BC
Bronze form
Bronze Mid Western Zhou ~900 BC
Bronze form
Bronze Late Spring and Autumn ~500 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Qin 221-206 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Spring and Autumn 771-476 BC
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (0 of 9 verified)

绽淀锭啶碇靛腚錠綻

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartdengHN-tˤeŋ-s become fixed; settled (v.i.)
dengHm-tˤeŋ-s make fixed, settle (v.t.)
tengHtˤeŋ-s ready-cooked (food)

說文解字

《說文》：“定，安也。从宀，从正。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

理 lǐ, li reason

Original meaning: cut jade

Phonosemantic compound. 𤣩 represents the meaning and 里 represents the sound.

Components

𤣩
𤣩 Meaning component
yù jade

𤣩 is a component form of 玉.

Change in meaning
𤣩 hints at the original meaning of 理, "cut jade", which is no longer the most common meaning of 理 in modern Mandarin.
里
里 Sound component
lǐ, li village

Character Evolution

Bronze form
Bronze Late Western Zhou ~800 BC
Seal form
Seal Qin 221-206 BC
Seal form
Seal Western Han 202 BC-9 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartliXm(ə).rəʔ cut jade; regulate
liXm(ə).rəʔ reason; principle

說文解字

《說文》：“理，治玉也。从玉，里聲。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)