What do 'gyre' and 'gimble' mean in Jabberwocky?

Lewis Carroll offered definitions for 'gyre' and 'gimble' on two separate occasions. While the definition of 'gimble' remains consistent, the meaning of 'gyre' changes entirely.

1855

GYRE: verb (derived from 'gyaour' or 'glaour', "a dog") "to scratch like a dog."

GYMBLE: (whence 'gimblet') to screw out holes in anything

1871

To "gyre" is to go round and round like a gyroscope.

To "gimble" is to make holes like a gimblet.'

This demontrates that the meanings of the Words in Jabberwocky are not absolute, but are open to interpretation.