吸热
xī​rè

endothermic

吸 xī inhale

Phonosemantic compound. 口 represents the meaning and 及 represents the sound.

Components

口
口 Meaning component
kǒu, kou mouth
及
及 Sound component
jí extend

Character Evolution

Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartxipqʰ(r)əp inhale

說文解字

《說文》：“吸，內息也。从口，及聲。”

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)

热 rè hot Simplified

Simplified form of 熱. Phonosemantic compound. 灬 represents the meaning and 埶 represents the sound.

Components

灬
灬 Meaning component
biāo, huǒ fire

灬 is a component form of 火.

执
执 Simplified component
zhí hold in hand

Shorthand for the 埶 component in the traditional character 熱.

Sources

Readings & variants
Unicode

熱 rè hot Traditional

Phonosemantic compound. 灬 represents the meaning and 埶 represents the sound.

Components

灬
灬 Meaning component
biāo, huǒ fire

灬 is a component form of 火.

埶
埶 Sound component
yì, shì art, skill
Change in sound

Character Evolution

Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (1)

爇

Meaning (1)

爇

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartnyetC.nat (or *C.ŋet?)hot

說文解字

《說文》：“熱，溫也。从火，埶聲。”

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)