aspersing

/AH0 S P ER1 S IH0 NG/
verb
  1. 1

    To sprinkle or scatter (liquid or dust).

  2. 2

    To falsely or maliciously charge another; to slander.

Source: https://en.wiktionary.org/wiki/asperse, https://en.wiktionary.org/wiki/aspersing