trivet

noun3

1. •
   A stand with three short legs, especially for cooking over a fire.

   • They collected wood and built back the fire and they fetched rocks to make a trivet and there they set the bucket to boil. — 1994
2. •
   A stand, sometimes with short, stumpy feet, or a mat used to support hot dishes and protect a table; a coaster.
3. •
   A weaver's knife used to cut out the wire that was used to form a pile.