* Trestle: A framework of three legs supporting a structure.
* Trident: A three-pronged spear.
* Triangle: A plane figure with three sides and three angles.
* Triceps: A muscle in the back of the upper arm with three heads.
* Trilogy: A series of three related works.
* Triple: Three times as much or as many.
* Trio: A group of three people or things.
* Trivial: Of little importance or value.
These are just a few examples. Many other words in English contain the root "tres," including:
* Trespass: To enter someone's property without permission.
* Treasure: A valuable possession.
* Trellis: A framework of latticework, often used for supporting climbing plants.
* Tremendous: Very large or great.
It's worth noting that the root "tres" can sometimes be altered or combined with other prefixes or suffixes to create new words.