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Definition of ancestor


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an·ces·tor  audio  (nsstr) KEY  

NOUN:
  1. A person from whom one is descended, especially if more remote than a grandparent; a forebear.
  2. A forerunner or predecessor.
  3. Law The person from whom an estate has been inherited.
  4. Biology The actual or hypothetical organism or stock from which later kinds evolved.

ETYMOLOGY:
Middle English auncestre, from Old French, from Latin antecessor, predecessor, from antecessus, past participle of antecdere, to precede : ante-, ante- + cdere, to go; see ked- in Indo-European roots

SYNONYMS:
ancestor , forebear , forefather , progenitor

These nouns denote a person from whom one is descended: ancestors who were farmers; land once owned by his forebears; laws handed down from our forefathers; our progenitors' wisdom.
Antonym: descendant


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The American Heritage® Dictionary of the English Language, Fourth Edition.
Copyright © 2000 by Houghton Mifflin Company.
Published by the Houghton Mifflin Company. All rights reserved.
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