adj. A comparative of far.
1. More distant in degree, time, or space: a result that was further from our expectations than last time; the further lamppost.
2. Additional: a further example; a further delay.
adv. A comparative of far.
1. To a greater extent; more: considered further the consequences of her actions.
2. In addition; furthermore: He stated further that he would not cooperate with the committee.
3. At or to a more distant or advanced point: went only three miles further; reading five pages further tonight. See Usage Note at farther.
tr.v. fur·thered, fur·ther·ing, fur·thers
To help the progress of; promote. See Synonyms at advance.
[Middle English, from Old English furthra, from furthor, farther. Adv., from Middle English, from Old English furthor; see per1 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.