Shuddering

They could not help shuddering when they found a dead body in the wood.

Source: tatoeba (306917)

Then straight, for doubtful was our answer there, / he knew him taken in the foemen's toils. / Shuddering, he checks his voice, and back his foot recoils.

Source: tatoeba (6820210)

As one who, in a tangled brake apart, / on some lithe snake, unheeded in the briar, / hath trodden heavily, and with backward start / flies, trembling at the head uplift in ire / and blue neck, swoln in many a glittering spire. / So slinks Androgeus, shuddering with dismay.

Source: tatoeba (6820373)

Cold horror froze each vein. / Aghast and shuddering my comrades stood; / down sank at once each heart, and terror chilled the blood. / No more with arms, for peace with vows and prayer / we sue, and pardon of these powers implore, / or be they goddesses or birds of air / obscene and dire.

Source: tatoeba (7020751)