As nouns the difference between butterer and betterer
is that butterer is agent noun of butter; one who butters while betterer is one who betters, makes something better.
As an adjective betterer is
comparative of better.
betterer
English
Adjective
(head)
(nonstandard) (better)
(nonstandard) better
See also
* bestest
Noun
(head)
One who betters, makes something better.