快慢
kuài​màn

speed

快 kuài, kuai rapid

Phonosemantic compound. 忄 represents the meaning and 夬 represents the sound.

Components

忄
忄 Meaning component
xin, xīn heart

忄 is a component form of 心.

夬
夬 Sound component
guài, jué parted

Character Evolution

Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Regular Modern

Component uses

Sound (1)

筷

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartkhwaejH[k]ʷʰˤret-s cheerful

說文解字

《說文》：“快，喜也。从心，夬聲。”

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)

慢 màn slow(ly)

Phonosemantic compound. 忄 represents the meaning and 曼 represents the sound.

Components

忄
忄 Meaning component
xin, xīn heart

忄 is a component form of 心.

曼
曼 Sound component
màn long

Character Evolution

Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Western Jin 266-316 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartmaenHmˤra[n]-s disrespectful

說文解字

《說文》：“慢，惰也。从心，曼聲。一曰慢，不畏也。”

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)