Flight-related prefix Crossword Clue

 The answer to the crossword clue "Flight-related prefix" is aero. It is a Greek prefix that means "air" or "pertaining to air." It is used in many words related to flight, such as aeroplane, aerodynamics, and aerospace.

The word "aero" is thought to have originated in the 5th century BC and is derived from the Greek word "aer," which means "air." The prefix "aero" is used in many languages, including English, French, German, and Spanish.

Here are some other words that start with the prefix "aero":

Aerobatics

Aerodrome

Aeronaut

Aeronautics

Aerospace

Aerosol

I hope this helps! Let me know if you have any other questions.