pneumo-, pneum-, pneumono-, pneumon-

(Greek: lung; breath, breathe)

pneumonic
pneumonitis
pneumonocele
pneumonocentesis
pneumonoconiosis
pneumonodynia (s) (noun) (no pl)
Pain in the lungs: Possible origins of pneumonodynia can be a respiratory infection, pleurisy, asthma, a pulmonary embolism, or even tuberculosis.
pneumonokoniosis
pneumonomelanosis
pneumonometer
pneumonopathic
pneumonopathy (s) (noun), pneumonopathies (pl)
Any ailment of the lungs: When the elderly Mr. Hodge couldn't breathe properly anymore, he went to his doctor who diagnosed him as having a condition of pneumonopathy which had to be treated immediately!
pneumonopexy
Fixation of the lung by suturing the costal and pulmonary pleurae or otherwise causing adhesion of the two layers.
pneumonophorous
pneumonorrhagia
pneumonotomy

Word units related to breath and breathe: hal-; pneo-; pneumato-; psych-; spiro.