Used to form a noun from an adjective; especially, to form the noun referring to the state, property, or quality of conforming to the adjective's description.

Alternative form of -ety

(pathology) Suffix denoting diseases characterized by inflammation, itself often caused by an infection. / (humorous) Used to form the names of various fictitious afflictions or diseases.

(informal) A medical condition accompanied by inflammation. / (informal, Caribbean) The feeling of sleepiness after eating a heavy meal, usually the itis.

plural of Itie

Alternative form of Eyetie

(slang) obsession with a particular person who is idealized as the only right one to date or to marry, often without any actual relationship developments.

(aviation) The determination of a pilot to reach a destination even when conditions for flying are very dangerous (in technical terms, a form of plan continuation bias).

(Internet slang) Initialism of I think/thought you mean/meant.

(Greek mythology) The son of Aedon.