Dastard

Part of speech: noun (n.)

One who meanly shrinks from danger; an arrant coward; a poltroon. You are all recreants and dashtards, and delight to live in slavery to the nobility. Shak.

Part of speech: verb (v.)

To dastardize. [R.] Dryden.

Part of speech: adjective (a.)

Meanly shrinking from danger; cowardly; dastardly. "Their dastard souls." Addison.