s |
furtherest |
As a letter s
is the letter s with a.
As an adjective furtherest is
(nonstandard|humorous use only|informal) furthest.
farthest |
furtherest |
As adjectives the difference between farthest and furtherest
is that
farthest is superlative of far while
furtherest is furthest.
As an adverb farthest
is superlative of far POS=adverb.