metallurgy
n.
1704, from Modern Latin metallurgia, from Greek metallourgos "worker in metal," from metallon "metal" (see metal) + ergon "work" (see organ). Related: Metallurgical; metallurgist.
〔李〕n. 冶金学（ ←metal n. ） ←-urgy [GK] =the technology of表示“⋯工艺”