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v. Simple past tense and past participle of indurate.

adj. Hardened

In bot., zoöl., and anatomy, hardened; made thick and dense; calloused: as, an indurated swelling: applied in entomology to hard spots or elevations on a soft surface, etc.

In geology, hardened; consolidated: applied specifically to fragmental sediments such as sandstone, clay, or shale.

"Swamp or Hanover Square, to subscribe to a testimonial to some one of the best abused of these "indurated" sinners, in honor of his distinguished services in lowering some tax-rate, in suppressing some nuisance, in establishing some new municipal safeguard to life or property."

hardened   

indurate