Answer: indurates

AnswerCrossword Clue
INDURATESHardens
induratesto become hard; harden
indurateshardened; unfeeling; callous; inured
induratesINDURATE, to make hard (firm and unyielding)
induratesto become established or confirmed
induratesto inure; accustom
induratesto make hard; harden, as rock, tissue, etc.
induratesto make callous, stubborn, or unfeeling