铰刀
jiǎo​dāo

reamer

铰 jiǎo hinge Simplified

Objects with a metal 钅 joint 交; 交 also provides the pronunciation

Components

钅
钅 Meaning component
jīn metal
交
交 SoundMeaning component
jiāo to cross, to mix

Sources

Readings & variants
Unicode

刀 dāo knife

Pictograph of a knife.

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Late Shang ~1100 BC
Bronze form
Bronze Late Shang ~1100 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
Regular Modern

Component uses

Iconic (12)

方分解绝初亡勿刃絕叚𢇍刅

Meaning (3 of 5 verified)

切券剪劈㓞

Sound (1 of 3 verified)

召叨忉

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagarttawC.tˤaw knife

說文解字

《說文》：“刀，兵也。象形。”

Sources

Character origin
季旭昇《說文新證》p.352
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

鉸 hinge Traditional

Objects with a metal 釒 joint 交; 交 also provides the pronunciation

Components

釒
釒 Meaning component
jīn metal
交
交 SoundMeaning component
jiāo to cross, to mix

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartkæwXmə-[k]ˤr[a]wʔshear; scissors
Zhengzhangkreːw
kreːwʔ
kreːws

Sources

Readings & variants
Unicode
Historical pronunciations
Baxter-SagartZhengzhang Shangfang