verb / noun
tremble
TREM-bul/ˈtrembl/
A slight involuntary shaking movement.
The chilled traveler's hands tremble around the warm cup.

Etymology
Medieval Latin tremulare meant both “tremble” and “fear,” joining bodily shaking with an emotion that can cause it. English retains the physical sense, including involuntary shaking from cold or weakness.
In context
He doesn't He doesn't shake or tremble in fear when you raise your voice