To cover or coat with or as if with a crust: tires encrusted with dried mud; legalities that were encrusted with tradition.
To decorate by inlaying or overlaying with a contrasting material: encrust wood paneling with ivory.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.