(Greek: a suffix; inflammation, burning sensation; by extension, disease associated with inflammation)

This suffix has come to mean "inflammation of" but originally it meant "pertaining to" or "of the". The Greek word nosos ["disease"] was either expressed or understood, although it might not be included with the basic element. For example, bursitis nosos would mean "disease of the bursa".

rhinitis (s) ((s) (noun), rhinitides (pl)
The inflammation of the nasal mucous membrane which lines the nose: A rhinitis is usually manifested by some combination of nasal obstruction, nasal discharge, sneezing, and facial pressure or pain.
salpingitis (s) (noun), salpingitides (pl)
Inflammation of a fallopian tube (the tube that goes from the ovary to the top of the uterus): "Salpingitis is usually caused by an infection which spreads upward from the vagina (muscular passage which forms part of the female reproductive system), cervix (the neck and outlet of the uterus), and the uterus (the hollow, muscular organ of the female reproductive system in which the fertilized ovum [egg] normally becomes embedded and in which the developing embryo [unborn child during the first eight weeks of development] and the fetus [the unborn child from the end of the eighth week after fertilization until birth] is nourished and grows)."
salpingo-oophoritis (s) (noun), salpingo-oophoritides (pl)
sialadenitis, sialoadenitis (s) (noun) (no pl)
Inflammation of a salivary gland or glands; sialitis:.Chronic nonspecific sialadenitis consists of a persistent inflammatory swelling of a major salivary gland, often characterized by recurrent exacerbations. It is sometimes the result of an infection secondary to duct obstruction, for instance by a calculus.
sialoangitis, sialoangiitis
Inflammation of the salivary ducts.
sinusitis (s) (noun), sinusitises (pl)
An inflammation of the sinuses, or a sinus; especially, in the nasal region: Common symptoms include thick nasal mucus, a plugged nose, and facial pain: Other forms of sinusitis may include fever, headaches, a poor sense of smell, a sore throat, and coughs.
staphylitis (s) (noun), staphylitides; staphylites (pl)
Inflammation of the uvula or palate; uvulitis: Dr. Jones explained to Jill that the irritation and soreness in her throat was caused by a condition of staphylitis involving the small piece of soft tissue dangling down from the soft palate over the back of her tongue.
steatitis (s) (noun) (no pl)
Inflammation of adipose (fat) tissue: Steatitis occurs in the fat tissue in certain animals, such as swine, horses, cats, and chickens.

Steatitis is one of the manifestations of vitamin E-selenium deficiency disease in these animals. It is said to be caused by feeding diets consisting of too much unsaturated fatty acid and not enough vitamin E.

"Yellow fat disease" is the more popular name for this illness.

Inflammation of a ligament or ligaments.