means The act of preventing someone from speaking, expressing themselves, or being heard — whether by force, intimidation, or quieter forms of suppression.

from From "silent," which comes through Old French from Latin "silentium" (stillness, a hush), built on the verb "silere," to be quiet or still. English added the "-ing" suffix to turn the act into an ongoing thing — so "silencing" is literally the work of making the world stop sounding. The Latin root carried a sense of imposed stillness from the start; "silentium" was the word for the deliberate quiet a Roman crowd was expected to keep, not just the absence of noise.