adj. A superlative of far.
Most remote or distant.
adv. A superlative of far.
1. To or at the most distant or remote point.
2. To or at the most advanced point or stage.
3. By the greatest extent or degree.
[Middle English ferthest, superlative of farther; see FARTHER.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.