primogenitor

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noun

An initial ancestor.

Similar
progenitor
Scrabble 17
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Meanings

nounprimogenitor (plural primogenitors)

plural primogenitors

  1. An initial ancestor.

Synonyms & antonyms

nounan ancestor in the direct line

Similar
progenitor
Broader
ancestorascendantascendent
Also see
progenitor

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From Latin primus (“first”) + -o- + genitor (Latin genitor). Compare progenitor.

Full word history & related roots →
Cite this entry
APA

primogenitor. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/primogenitor

MLA

“primogenitor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/primogenitor. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “primogenitor,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/primogenitor.

Source: primogenitor on Wiktionary, CC BY-SA 4.0.