bodily condition or disease
-i'tis [ Greek ..., orig, fem. adjective suffix.] A suffix used in medical terms to denote an inflammatory disease of ; as, arthr itis ; bronch itis , phren itis . 
-itis: Suffix meaning inflammation. For example, colitis is literally colon inflammation or figuratively inflammation of the colon. The ending -itis is one of the building blocks derived from Greek (in this case) or Latin used to construct medical terms.