That would be 'itis'. As in sinusitis.
-osis
-ectasis is the medical terminology combining form meaning abnormal widening.
The medical terminology combining form for abnormal condition of cells is "path/o" or "pathy".
-osis is the medical terminology combining form meaning condition of. Examples are vaginosis and adenomyosis.
-ectasia is the medical terminology combining form meaning abnormal enlargement of a diameter.
-osis
-plasia is the medical terminology combining form meaning formation. So neoplasia means new formation, and dysplasia means abnormal formation.
The medical terminology combining form meaning "condition of not feeling" is "anesthesia." This term refers to the state of insensitivity to pain or sensation, typically induced for medical procedures.
Hetero- is the medical terminology combining form meaning unlike or different. For instance, heterosexual refers to someone sexually attracted to the opposite sex. Heterochromia means different colors.
-rrhagia is the medical terminology combining form meaning discharge of blood, as in menorrhagia (heavy menstrual flow). A related suffix, -rrhea, refers to any kind of abnormal flow, such as rhinorrhea (abnormal nasal discharge) or otorrhea (abnormal ear discharge).
Malacia (or suffix: -malacia) means any abnormal softening of tissue.
-paresis is the medical terminology suffix meaning weakness.
The condition or quality of being narrow.