ASTRO=STAR\
Astronomy
Astronomer
Astrology
AQ=Water
Aqua
Aquacade
Aquamarine
Aquarium
Ante=Before.
Antecede
Antedate
Antefix
Antelopes

Anti=against
Antibacterial
Antiaircraft
Antialien
Aero=Air
Aerobatic
Aerobe

aerobia
Abs=away
abscesss
abscise

abscond
Therm=heat
Geothermal
Thermastat

thermacillay