What's the difference between ratter and recreant?

Ratter

Definition:

• (n.) One who, or that which, rats, as one who deserts his party.
• (n.) Anything which catches rats; esp., a dog trained to catch rats; a rat terrier. See Terrier.

Example Sentences:

• (1) I rather like Bryant – a "little wire-haired ratter", according to Daphne – who becomes increasingly bombastic as the book proceeds.

Recreant

Definition:

• (a.) Crying for mercy, as a combatant in the trial by battle; yielding; cowardly; mean-spirited; craven.
• (a.) Apostate; false; unfaithful.
• (n.) One who yields in combat, and begs for mercy; a mean-spirited, cowardly wretch.

Example Sentences: