(now rare) To feel affection for.

(transitive) To influence or alter. / (transitive) To move to emotion. / (transitive, pathology) Of an illness or condition, to infect or harm (a part of the body).

simple past tense and past participle of affect

Someone affected, as by a disease.

Influenced or changed by something. / Simulated in order to impress. / Emotionally moved; touched. / (algebra, archaic) adfected. / Resulting from a mostly negative physical effect or transformation.

present participle of affect

Producing or causing strong feelings and emotions.

Ability to experience affects: feelings, emotions, judgement, motivations, etc.

plural of affect

plural of affectation