Harden \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Harden \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Hurden \Hur"den\, n. [From Hurds.]

A coarse kind of linen; -- called also harden. [Prov. Eng.]

Source: Webster's Revised Unabridged Dictionary (1913)