harden
n.
c.1200 (replacing Old English heardian) "to make (something) hard," from hard + -en(1). Meaning "to become hard" is late 14c. Related: Hardened (figurative sense of "unfeeling" is from late 14c.); hardening.
| 词汇 | harden |
| 词根词缀 | Online Etymology Dictionary harden n. c.1200 (replacing Old English heardian) "to make (something) hard," from hard + -en(1). Meaning "to become hard" is late 14c. Related: Hardened (figurative sense of "unfeeling" is from late 14c.); hardening. |
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