English
primogenitor
Primogenitor comes from Latin primus ‘first’, from Proto-Indo-European *préy ‘before, in front’, and perhaps ultimately from *per-.
- Proto-Indo-Europeanc. 4500–2500 BCE*per-1‘before, in front’uncertain
- Proto-Indo-Europeanc. 4500–2500 BCE*préy1‘before, in front’uncertain
- Proto-Italicc. 1500–700 BCE*prīzmos1‘foremost, first’reconstructed
- Latinc. 75 BCE–200 CEprimus2‘first’
- Englishtodayprimogenitor2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin primus
- 2 Wiktionary, English primogenitor
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*per-Wiktionary, Latin primus‘before, in front’uncertain
- Proto-Indo-Europeanc. 4500–2500 BCE*préyWiktionary, Latin primus‘before, in front’uncertain
- Proto-Italicc. 1500–700 BCE*prīzmosWiktionary, Latin primus‘foremost, first’reconstructed
- Latinc. 75 BCE–200 CEprimusWiktionary, English primogenitor‘first’
- EnglishtodayprimogenitorWiktionary, English primogenitor
Linked words
through Proto-Indo-European *per- ‘before, in front’
first, before, far, per, support, further, report, press, fear, practice, price, private, pre, appreciate, opportunity, sport, port, pregnant, afford, practical, ford, prize, forth, precious, parade, praise, par, interpretation, ferry, pirate, fare, privilege, pardon, porch, prix, interpreter, pragmatic, afar, petra, depreciation, 150 more
through Proto-Indo-European *préy ‘before, in front’
through Proto-Italic *prīzmos ‘foremost, first’
through Latin primus ‘first’
primary, premier, prime, primitive, primal, primate, primacy, primus, 11 more
Today it means
noun An initial ancestor.
Sources
Sources: Wiktionary, “primogenitor”; the older steps come from the Wiktionary entry for Latin primus. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *per- / primogenitor