verb

• (transitive) To influence or alter.
  "The experience affected me deeply."
• (transitive) To move to emotion.
  "He was deeply affected by the tragic ending of the play."
• (transitive, pathology) Of an illness or condition, to infect or harm (a part of the body).
  "Hepatitis affects the liver."
• (transitive, archaic) To dispose or incline.
  "men whom they thought best affected to religion and their country's liberty"

verb

• (transitive) To make a show of; to put on a pretense of; to feign; to assume. To make a false display of.
  "to affect ignorance"
• (obsolete, transitive) To aim for, to try to obtain.
  "Duke.[...] I loue the people, But doe not like to stage me to their eyes: Though it doe well, I doe not rellish well Their lowd applause, and Aues vehement: Nor doe I thinke the man of safe discretion That do's affect it."
• (transitive, rare) To feel affection for (someone); to like, be fond of.
  "There is a Lady in Verona heere Whom I affect: but she is nice, and coy, And naught esteemes my aged eloquence."
• (transitive, obsolete) To show a fondness for (something); to choose.
  "Amongst humane conditions this one is very common, that we are rather pleased with strange things then with our owne; we love changes, affect alterations, and like innovations."

noun

• (psychology) A subjective feeling experienced in response to a thought or other stimulus; mood, emotion, especially as demonstrated in external physical signs.
  "if we are afraid of robbers in a dream, the robbers are certainly imaginary, but the fear is real. This draws our attention to the fact that the development of affects [translating Affectentwicklung] in dreams is not amenable to the judgement we make of the rest of the dream-content [...]."
• (obsolete) One's mood or inclination; mental state.
• (obsolete) A desire, an appetite.