- cast iron (n.)
[cast iron 词源字典]
- 1660s, from cast (past participle adjective) "made by melting and being left to harden in a mold" (1530s), from past participle of cast (v.) in sense "to throw something in a particular way" (c. 1300), especially "form metal into a shape by pouring it molten" (1510s). From 1690s as an adjective, cast-iron.[cast iron etymology, cast iron origin, 英语词源]