tri- three; having three
tricycle
triangular
Trisolaris was a planet in the Alpha Centauri System. Its chaotic orbit around the system’s three suns renders the planet extremely hostile even to its native life, forcing the Trisolarans to seek a new home on Earth.
render: formal
to cause (someone or something) to be in a specified condition
Depression can render a person helpless.
Both passengers were rendered unconscious in the accident.
The sight of her rendered him speechless.
The virus rendered the computer useless.