Hardened
来自Big Physics
Safin(讨论 | 贡献)2022年4月28日 (四) 06:03的版本 (建立内容为“Category:etymology == etymonline == [https://www.etymonline.com/word/hardened ref] hardened (adj.) past-participle adjective from harden (v.). Figurative s…”的新页面)
etymonline
hardened (adj.)
past-participle adjective from harden (v.). Figurative sense of "unfeeling" is from late 14c.