Webster’s Revised Unabridged Dictionary · 1913
Caseharden
Case′hard′en (·härd′'n), v. t. 1. To subject to a process which converts the surface of iron into steel.
2. To render insensible to good influences.
Webster’s Revised Unabridged Dictionary · 1913
Case′hard′en (·härd′'n), v. t. 1. To subject to a process which converts the surface of iron into steel.
2. To render insensible to good influences.