surround
sur-round
noun
A decorative border or frame around an object, often a fireplace or door.
"The fireplace had a marble surround."
verb
To be or go all around something or someone, enclosing them completely.
"The police surrounded the building."
Thesaurus
Synonyms: beleaguer, hem in, circumvent, besiege, ring, environ, border, skirt, environs, surroundings, environment, smother