懂中文 Dong Chinese

鈷

gǔ

cobalt

Phonosemantic compound. 釒 represents the meaning and 古 represents the sound.

Components
釒 meaning component

釒  Meaning component

jīn

  

metal

釒 is a component form of 金.

古 sound component

古  Sound component

gǔ

  

old

Evolution

鈷 Bronze script Warring States (475-221 BC)

Bronze script

Warring States (475-221 BC)
鈷 Regular script Modern

Regular script

Modern
Definitions

钴 (鈷) 

gǔ

cobalt; household iron cobaltum; cobalt (chemistry); Taiwan pr. [gū]