额窦
é​dòu

frontal sinus

额 é forehead Simplified

Phonosemantic compound. 页 represents the meaning and 客 represents the sound. Simplified form of 額.

Components

页
页 Meaning component
yè page
客
客 Sound component
kè guest

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode

窦 dòu, dú surname Simplified

Components

穴
穴 Meaning component
xué, jué cave
𧸇
𧸇 SoundSimplified component
yù to sell

Sources

Readings & variants
Unicode

額 é forehead Traditional

Phonosemantic compound. 頁 represents the meaning and 客 represents the sound.

Components

頁
頁 Meaning component
yè (head), page
客
客 Sound component
kè guest

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartngaekC.ŋˤrak (no pre-Qín exx?)forehead

Sources

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

竇 surname Traditional

Components

穴
穴 Meaning component
xué, jué cave
𧸇
𧸇 Sound component
yù to sell

Character Evolution

Seal form
Seal Western Han 202 BC-9 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Jin 266-316 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartduwHlˤok-s hole; drain

說文解字

《說文》：“竇，空也。从穴，瀆省聲。”

Sources

Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)