buttontrim
nounUK /ˈbʌtəntrɪm/
US /ˈbʌtəntrɪm/
A buttontrim is a pretty edge or border sewn around a button.
She added a red buttontrim to make the coat look fancy.
OTHER MEANINGS
2. A decorative strip of fabric attached beside a row of buttons.
The tailor stitched a buttontrim along the placket.
3. The finishing band that hides the raw edge near buttons.
A sturdy buttontrim keeps the buttonholes from fraying.
4. A small ornamental piece placed around a button as decoration.
The doll's dress had a tiny lace buttontrim.