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Definition of primogenitor - 3 dictionary results

pri⋅mo⋅gen⋅i⋅tor

  [prahy-muh-jen-i-ter]
Use primogenitor in a Sentence
–noun
1. a first parent or earliest ancestor: Adam and Eve are the primogenitors of the human race.
2. a forefather or ancestor.
Origin:
1645–55; < LL prīmōgenitor ancestor, equiv. to L prīmō at first + genitor genitor
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pri·mo·gen·i·tor   (prī'mō-jěn'ĭ-tər)   
n.  

  1. The earliest ancestor.

  2. An ancestor or forebear.


[Late Latin prīmōgenitor : Latin prīmō, at first (from prīmus, first; see per1 in Indo-European roots) + Latin genitor, begetter (from genitus, past participle of gignere, to beget; see genə- in Indo-European roots).]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

primogenitor 
"an ancestor," 1475, from L.L. primogenitor (1361), from L. primo (adv.) "at first," from primus "first" (see prime (adj.)) + genitor "father," from genitus, pp. of gignere "to beget" (see genus). The fem. form is primogenitrix (1875).
Online Etymology Dictionary, © 2001 Douglas Harper
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