primogenitor

Noun
Synonyms: progenitor

WordNet 3.0

Noun (1)

  1. an ancestor in the direct lineSynonyms: progenitor
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Webster's Dictionary (GCIDE)

Primogenitor \Pri`mo*gen"i*tor\, n. [LL., fr. L. primus first + genitor a begetter.] The first ancestor; a forefather. [1913 Webster]
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