[fur.ther] adv [ME, fr. OE furthor (akin to OHG furthar further), compar., fr. the base of OE forth forth] (bef. 12c) 1: farther 1 "my ponies are tired, and I have ~ to go --Thomas Hardy"
2: in addition: moreover
3: to a greater degree or extent "~ annoyed by a second intrusion" usage see farther
[2]further vt fur.thered ; fur.ther.ing (bef. 12c): to help forward: promote syn see advance -- fur.ther.er n [3]further adj (13c) 1: farther 1 "rode ... across the valley and up the ~ slopes --T. E. Lawrence"
2: going or extending beyond: additional "~ volumes" "~ education" usage see farther