Directly based on "ten":
* Decade: A period of ten years.
* Decimal: Relating to or based on the number ten.
* Deci: A prefix meaning one-tenth.
* Tenth: One part in ten.
* Tenfold: Ten times as much.
* Decameter: A metric unit of length equal to ten meters.
Words related to ten in quantity:
* Dozen: Twelve (close to ten).
* Score: Twenty (two tens).
* Centenarian: A person who is one hundred years old.
* Millennium: A period of one thousand years (one hundred tens).
Words related to ten in a conceptual way:
* Decalogue: The Ten Commandments.
* Tenacious: Holding fast; persistent (like a ten-fingered grip).
* Tenable: Defensible or justifiable (like a position that can be held tenaciously).
* Tenet: A principle or belief (like a fundamental cornerstone of a system).
Words with "ten" in their etymology:
* Tinder: Originally meant "kindling" - a small piece of easily ignitable material, perhaps derived from the idea of "ten" tiny pieces.
* Tithing: The practice of giving one-tenth of one's income to the church (related to "tenth").
This is just a sampling! There are many other words connected to "ten" in various ways, depending on how you define "based on." You can find more by exploring dictionaries and etymology resources.