a first parent or earliest ancestor: Adam and Eve are the primogenitors of the human race.
a forefather or ancestor.
Origin of primogenitor
< Late Latin prīmōgenitor
ancestor, equivalent to Latin prīmō
at first + genitor genitor
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for primogenitorlineage
British Dictionary definitions for primogenitor
a forefather; ancestor
an earliest parent or ancestor, as of a race
Word Origin for primogenitor
C17: alteration of progenitor after primogeniture
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for primogenitor
"an ancestor," late 15c., from Medieval Latin primogenitor, from Latin primo (adv.) "first in order of time; at first," from primus "first" (see prime (adj.)) + genitor "father," from genitus, past participle of gignere "to beget" (see genus). Related: Primogenital; primogenitary. The fem. form is primogenitrix (1875). The rights of a second son are secundogeniture.
Online Etymology Dictionary, © 2010 Douglas Harper