What does the root word ast mean?

The root word "ast" comes from the Greek word "astron," which means "star".

This root is found in many English words related to stars and space, like:

* Astronomy: The study of stars and celestial objects.

* Astrology: The study of the supposed influence of stars and planets on human affairs.

* Astronaut: A person trained to travel in space.

* Asterisk: A star-shaped symbol (*).

* Astrophysics: The study of the physical properties of stars and other celestial objects.

While "ast" usually refers to stars, it can also be found in words related to space more broadly.