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1. The earliest ancestor.
2. An ancestor or forebear.

[Late Latin prīmōgenitor : Latin prīmō, at first (from prīmus, first; see per in Indo-European roots) + Latin genitor, begetter (from genitus, past participle of gignere, to beget; see genə- in Indo-European roots).]


1. a forefather; ancestor
2. (Anthropology & Ethnology) an earliest parent or ancestor, as of a race
[C17: alteration of progenitor after primogeniture]


(ˌpraɪ məˈdʒɛn ɪ tər)

forefather; ancestor.
[1645–55; < Late Latin prīmōgenitor ancestor = Latin prīmō at first + genitor parent]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.primogenitor - an ancestor in the direct lineprimogenitor - an ancestor in the direct line  
ancestor, antecedent, ascendant, ascendent, root - someone from whom you are descended (but usually more remote than a grandparent)
genitor - a natural father or mother


n (= ancestor)Ahn(e) m, → Vorfahr m; (= first ancestor)Urahn(e) m, → Stammvater m
References in periodicals archive ?
The younger pair, who stay in the Barito basin, are the primogenitors of the Siang, while the elder two, who go to live in the headwaters of the Kahayan River, become the ancestors of the Dohoi, Tabahoi, and Pananjoi (Ave 1972:193).
Unlike the fallen primogenitors, she chooses good over evil.
In the first chorus, the first chord is "Abolitionism" and the second is "Blues/Jazz Primogenitors.