冶具[jigu] jig (tool)
鍛冶[kaji] smithing
刀鍛冶[katanakaji] swordsmith
冶金[yakin] metallurgy
冶金学[yakingaku] metallurgy (the science)

冶金学者[yakingakusha] metallurgist
冶工[yakou] metallurgical worker
陶冶[touya] training
鍛冶屋[kajiya] smith

安危[anki] fate
危うい[ayaui] dangerous
危うく[ayauku] barely
危ない[abunai] dangerous
危ながる[abunagaru] to be afraid of

危なっかしい[abunakkashii] dangerous
危ぶむ[ayabumu] to fear
危める[ayameru] to wound
危絵[abunae] suggestive or indecent picture
危害[kigai] injury

可鍛性[katansei] malleability
可鍛鉄[katantetsu] malleable iron
鍛える[kitaeru] to forge
鍛え上げる[kitaeageru] to temper thoroughly
鍛工[tankou] metal worker

鍛治[tanya] smithing
鍛練[tanren] tempering
刀鍛冶[katanakaji] swordsmith
鍛造[tanzou] forging
鍛接[tansetsu] forge welding