(1):

(n.) Matter or pieces of wood, ivory, etc., inlaid, or prepared for inlaying; that which is inserted or inlaid for ornament or variety.

(2):

(v. t.) To lay within; hence, to insert, as pieces of pearl, iviry, choice woods, or the like, in a groundwork of some other material; to form an ornamental surface; to diversify or adorn with insertions.