encrust
/ɛnˈkrʌst/Definitions
1. verb
to form or become encrusted with something, especially a hard or crusty substance
“The saltwater encrusted the ship’s hull.”
2. verb
to cover or surround something with a hard or crusty substance
“The soil encrusted the roots of the plant.”
3. noun
a hard or crusty substance that forms on the surface of something
“The encrust on the statue was carefully removed.”