Words directly related to "star":
* Asterisk: A star-shaped symbol (*).
* Asterism: A group of stars that form a pattern.
* Astrology: The study of the supposed influence of the stars on human affairs.
* Astronaut: A person who travels in space.
* Astronomy: The study of celestial objects.
Words using "ast" in other ways:
* Disaster: A sudden and great misfortune. (From the Greek "dis" (bad) and "aster" (star), originally meaning "bad star")
* Astrakhan: A type of curly lambskin fur. (From the city of Astrakhan in Russia, where the fur was originally traded)
Words related to the Greek word "astrapē" (lightning):
* Astrape: A type of wild goat.
* Astrapia: A genus of birds of paradise.
* Astragalus: A bone in the ankle, which was thought to resemble a lightning bolt.
Other words with "ast" in them:
* Asthma: A respiratory condition. (Origin uncertain, but possibly connected to "astrapē" due to the wheezing sound)
* Astatic: Not easily moved or changed.
This is just a small sample of words containing the Greek root "ast." Many more exist, and the meaning can vary depending on the specific word.