Miller introduces John Proctor, the protagonist of the play, in the following way:
Proctor was a farmer in his middle thirties. He need not have been a partisan of any faction in the town, but there is evidence to suggest that he had a sharp and biting way with hypocrites. He was the kind of man - powerful of body, even-tempered, and not easily led - who cannot refuse support to partisans with-out drawing their deepest resentment. In Proctor's presence a fool felt his foolishness instantly - and a Proctor is always marked for calumny therefore.
Using your knowledge of the play and Proctor's character, what does calumny in this instance mean?