a further two months ---farther?

[z7655431]

We intend to stay here for a further two months.
-Can I use the word of farther instead?

 

[bhaisahab]

No.

 

[Skrej]

'Farther' is sometimes used for physical distances, while 'further' is often used for figurative or metaphorical distances, although this is not an absolute rule.

Also, 'further' can have a meaning of 'additional' (as in your example sentence) that 'farther' doesn't.

 

[Tdol]

You're never wrong with further, but you may be with farther IMO.

 

[Rover_KE]

I'd say 'farther' is only used for physical distances.

 

[bhaisahab]

I'd say 'farther' is only used for physical distances.

And even then "further" works just as well. I don't see any need for "farther". A 15th century spelling mistake.;-)

farther (adv.) 15c. alteration of Middle English ferther (c. 1300), a variant of further (adv.). There is no historical basis for the notion that farther is of physical distance and further of degree or quality.
Online Etymology Dictionary.