v. 1 tr. & intr. (often foll. by with, by) provoke or become provoked to strong feeling, esp. anger. 2 Med. a intr. become hot, reddened, and sore. b tr. cause inflammation or fever in (a body etc.); make hot. 3 tr. aggravate. 4 intr. & tr. catch or set on fire. 5 tr. light up with or as if with flames. inflamer n.
[ ME f. OF enflammer f. L inflammare (as IN-(2), flamma flame) ]