1. [v]  cause to accept or become hardened to; habituate; "He was inured to the cold"
2. [v]  make fit; "This trip will season even the hardiest traveller"
3. [v]  harden by reheating and cooling in oil; "temper steel"
4. [v]  become hard or harder; "The wax hardened"
5. [v]  make hard or harder; "The cold hardened the butter"

Harden
Harden

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1. \Hard"en\, v. t. [imp. & p. p. {Hardened}; p. pr. & vb.
   n. {Hardening}.] [OE. hardnen, hardenen.]
   1. To make hard or harder; to make firm or compact; to
      indurate; as, to harden clay or iron.
   2. To accustom by labor or suffering to endure with
      constancy; to strengthen; to stiffen; to inure; also, to
      confirm in wickedness or shame; to make unimpressionable.
      ``Harden not your heart.'' --Ps. xcv. 8.
            I would harden myself in sorrow.      --Job vi. 10.
   

2. \Hard"en\, v. i.
   1. To become hard or harder; to acquire solidity, or more
      compactness; as, mortar hardens by drying.
            The deliberate judgment of those who knew him [A.
            Lincoln] has hardened into tradition. --The Century.
   2. To become confirmed or strengthened, in either a good or a
      bad sense.
            They, hardened more by what might most reclaim.
                                                  --Milton.