indurate

verbs

become fixed or established
"indurated customs"
is a type of (narrower)
undergo a change; become different in essence; losing one's or its original nature
"She changed completely as she grew older"; "The weather changed last night"
make hard or harder
"The cold hardened the butter"
is derived from
become hard or harder
"The wax hardened"
is derived from
cause to accept or become hardened to; habituate
"He was inured to the cold"

adjectives

emotionally hardened
"a callous indifference to suffering"; "cold-blooded and indurate to public opinion"