gǔ
cobalt; household iron
(chemistry) cobalt (Taiwan pr. [gu1]); used in 钴𬭁
Pictophonetic: semantic 钅 (metal), phonetic 古
Made of 钅 + 古
故顾古姑股骨孤雇谷估鼓固辜咕菇蛊呱沽锢箍瞽梏毂汩鸪