What's the difference between mummer and rummer?

Mummer

Definition:

• (n.) One who mumms, or makes diversion in disguise; a masker; a buffon.

Example Sentences:

• (1) He managed to stay for five years, founded The Mummers, the first university drama group to admit women, and edited Granta.

Rummer

Definition:

• (n.) A large and tall glass, or drinking cup.

Example Sentences: