swatch
noun
[ swɒtʃ ]
• a small sample of fabric intended to demonstrate the look of a larger piece.
• "colour swatches"
swatch
verb
• apply a sample of (paint, makeup, etc.) to a surface or one's skin to test or demonstrate the colour.
• "I got the polishes yesterday, and I've swatched them all"
Origin:
early 16th century (originally Scots and northern English, denoting the counterfoil of a tally, and later a tally fixed to a piece of cloth before dyeing): of unknown origin.