喔
éōwō

oh, surprised sound

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

Components

口
口 Meaning component
kǒu, kou mouth
屋
屋 Sound component
wū house, room

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Historical Pronunciations

Old Chinese
Zhengzhangqroːɡ

說文解字

《說文》：“喔，雞聲也。从口，屋聲。”

Sources

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