套牢
tào​láo

be trapped

套 tào cover

A cover has to be big (大) and long (镸) enough to wrap around what it is covering.

Components

大
大 Meaning component
dà, dài big
镸
镸 Meaning component
cháng long

镸 is a component form of 長.

Historical Pronunciations

Old Chinese
Zhengzhangtʰaːw
tʰaːws

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Zhengzhang Shangfang

牢 láo prison

Original meaning: pen; fence

Depicts an animal, such as a cow (牛), trapped around an animal's fence (宀).

Components

宀
宀 Iconic component
mián roof

Originally a pictograph of an animal pen. Later reanalyzed as 宀 (roof).

牛
牛 Iconic component
niú cow

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Late Shang ~1100 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
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 Western Han 202 BC-9 AD
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
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld Chinese
Zhengzhangruː
Unicodelɑu

說文解字

《說文》：“牢，閑，養牛馬圈也。从牛，冬省，取其四周帀也。”

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)