Webster's Revised Unabridged Dictionary · 1913

Shudder

Shudder , intransitive verb

[Old English shoderen, schuderen; akin to LG. schuddern, Dutch schudden to shake, Old Saxon skuddian, German schaudern to shudder, schutteln to shake, schutten to pour, to shed, Old High German scutten, scuten, to shake.]

To tremble or shake with fear, horror, or aversion; to shiver with cold; to quake.
With shuddering horror pale. — Milton
The shuddering tennant of the frigid zone. — Goldsmith

Shudder , noun

The act of shuddering, as with fear. — Shakespeare