Inhale.
it means air and it is a Latin root word
Updraft means the air around the earth.
The prefix word with de- that means to let air out of something is "deflate."
air
Inflate.
Exhale
air sacs
When the word air means to air out, then the word beginning with B is bare (like when someone bares their soul).
Luftwaffe is a German word that means "air force".
The word is anaerobic.
draft
INCARNATE is a verb that means to take on flesh.