en·crust 
(
ĕn-kr
ŭst
) also
in·crust (
ĭn-)
tr.v. en·crust·ed,
en·crust·ing,
en·crusts also
in·crust·ed or
in·crust·ing or
in·crusts 1. To cover or coat with or as if with a crust: tires encrusted with dried mud; legalities that were encrusted with tradition.
2. To decorate by inlaying or overlaying with a contrasting material: encrust wood paneling with ivory.
[Possibly from French incruster, from Latin incrustāre : in-, on; see EN-1 + crusta, crust; see kreus- in the Appendix of Indo-European roots.]