- a suffix used in pathological terms that denote inflammation of an organ (bronchitis; gastritis; neuritis) and hence, in extended senses, nouns denoting abnormal states or conditions, excesses, tendencies, obsessions, etc. (telephonitis; baseballitis).
Origin of -itis
- indicating inflammation of a specified parttonsillitis
- informal indicating a preoccupation with or imaginary condition of illness caused bycomputeritis; telephonitis
Word Origin and History for -itis
noun suffix denoting diseases characterized by inflammation, Modern Latin, from Greek -itis, feminine of adjectival suffix -ites "pertaining to." Feminine because it was used with feminine noun nosos "disease," especially in Greek arthritis (nosos) "(disease) of the joints," which was one of the earliest borrowings into English and from which the suffix was abstracted in other uses.
- Inflammation or disease of:laryngitis.
- A suffix meaning inflammation, as in bronchitis, inflammation of the bronchial tubes.