English

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Etymology

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super- +‎ harden

Verb

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superharden (third-person singular simple present superhardens, present participle superhardening, simple past and past participle superhardened)

  1. (transitive) To make superhard.
    • 2007, Josepha Sherman, Susan Shwartz, Epiphany, page 5:
      Once the storm subsides, we can blast the ice smooth and allow it to superharden. That should sustain a landing while we contrive something longer-term.