What's the difference between dabber and dubber?

Dabber

Definition:

• (n.) That with which one dabs; hence, a pad or other device used by printers, engravers, etc., as for dabbing type or engraved plates with ink.

Example Sentences:

Dubber

Definition:

• (n.) One who, or that which, dubs.
• (n.) A globular vessel or bottle of leather, used in India to hold ghee, oil, etc.

Example Sentences: