Tremor in Malayalam

Malayalam words whose English meaning includes “tremor”:

കിടിലം (kidilam) — Shudder, tremor, shivering.
നടുക്കം (nadukkam) — Tremor, shock, unexpected mental shock.
നടുങ്ങല്‍ (nadungal) — Shock, tremor, shuddering.
ഭൂചലനം (bhoochalanam) — Earthquake, earth tremor, the earth's motion, the daily and annual motions of the earth (rotation and revolution).
വിറ (vira) — Shivering, trembling, quake, tremor.