at or to a greater distance or more advanced point
farther down the corridor
to a greater degree or extent; = further1 (1)
[alteration of further1]
fartherorfurther? These two words are sometimes confused. When referring to physical distance, farther and further are equally correct: Penzance lies farther (or further) west than Truro. In abstract and figurative senses, further is the preferred form: of no further use; closed until further notice. As a verb, only further is used: to further God's purposes
farther2adj
more distant; remoter
being the more distant of two; = far2 (3)
the farther side
extending beyond what exists or has happened; = further2 (1)