刚玉
gāng​yù

corundum

刚 gāng hard Simplified

Simplified form of 剛. Phonosemantic compound. 刂 represents the meaning and 岡 represents the sound.

Components

冈
冈 Sound component
gāng ridge or crest of hill
刂
刂 Meaning component
dāo knife

刂 is a component form of 刀.

Sources

Readings & variants
Unicode

玉 yù jade

Pictograph of a ritual object made out of several pieces of jade joined together by a string. A dot was later added to 玉 to distinguish it from 王 (king).

Components

◎
◎ Iconic component
characterless component

Depicts a ritual object made out of several pieces of jade joined together by a string.

丶
丶 Distinguishing component
zhǔ dot

Character Evolution

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

Component uses

Meaning (2 of 8 verified)

莹璧玺钰璺鈺璽瑩

Sound (1 of 3 verified)

国钰鈺

Iconic (3)

宝弄珏

Simplified (1)

国

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartngjowk[ŋ](r)ok (< uvular?) jade

說文解字

《說文》：“玉，石之美。有五德：潤澤以溫，仁之方也；理自外，可以知中，義之方也；其聲舒揚，專以遠聞，智之方也；不橈而折，勇之方也；銳廉而不技，絜之方也。象三玉之連，丨，其貫也。，古文玉。”

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)

剛 gāng hard Traditional

Phonosemantic compound. 刂 represents the meaning and 岡 represents the sound.

Components

岡
岡 Sound component
gāng ridge or crest of hill
刂
刂 Meaning component
dāo knife

刂 is a component form of 刀.

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Mid Western Zhou ~900 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartkangkˤaŋ strong; hard

說文解字

《說文》：“剛，彊，斷也。从刀，岡聲。”

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)