trembler

/tʁɑ̃.ble/
1.
verbInf1st

to shake; to shiver; to tremble (physically, e.g. from cold, emotion, or a vibration)

Il fait trop froid, je n'arrête pas de trembler.

It's too cold; I can't stop shivering.

2.
verbInf1st

to be afraid; to tremble with fear or anxiety

Elle tremble à l'idée de parler en public.

She trembles at the thought of speaking in public.