intarsia

noun

• 1a method of knitting with a number of colours, in which a separate length or ball of yarn is used for each area of colour (as opposed to different yarns being carried at the back of the work):an intarsia design

• 2an elaborate form of marquetry using inlays in wood, especially as practised in 15th-century Italy.
• inlaid work similar to intarsia but in stone, metal, or glass rather than wood.