Aspersion

As·per·sion

Aspersion

n.
  1. A sprinkling, as with water or dust, in a literal sense.
    Behold an immersion, not and aspersion.
  2. The spreading of calumniations reports or charges which tarnish reputation, like the bespattering of a body with foul water; calumny.
    Every candid critic would be ashamed to cast wholesale aspersions on the entire body of professional teachers.
    — Grote.
    Who would by base aspersions blot thy virtue.