aero- Look up aero- at Dictionary.comword-forming element meaning "air, atmosphere; aircraft; gasses," from Greek aero-, comb. form of aer (genitive aeros) "air, lower atmosphere" (see air (n.1)).
aeronautics (n.) Look up aeronautics at Dictionary.com1824, from aeronautic (1784), from French aéronautique, from aéro- (see aero-) + nautique "of ships," from Latin nauticus, from Greek nautikos (see nautical).
I understand that Mercedes is also from the Greek....