What's the difference between gomer and goter?

Gomer

Definition:

• (n.) A Hebrew measure. See Homer.
• (n.) A conical chamber at the breech of the bore in heavy ordnance, especially in mortars; -- named after the inventor.

Example Sentences:

• (1) Elderly patients are sometimes stereotyped as "crocks" and "gomers"--crotchety chronic complainers beyond help and hope.

Goter

Definition:

• (n.) a gutter.

Example Sentences:

• (1) TGI was present in 65 of 71 endemic goter cases and in 9 of 14 sporadic goiter cases.